Hi all, I apologize if this has been talked about before but I just wanted to see if there is more of a benefit to go with the whole K&N set up or can I get the same gains(if any is to be had) with a drop in filter into the stock setup? Other than looks is there a performance benefit?
Thanks for the advice!
Quote from: 2010SHOtime on March 11, 2014, 12:15:06 AM
Hi all, I apologize if this has been talked about before but I just wanted to see if there is more of a benefit to go with the whole K&N set up or can I get the same gains(if any is to be had) with a drop in filter into the stock setup? Other than looks is there a performance benefit?
Thanks for the advice!
No real world performance benefit with the Full K & N CAI ... K & N drop in filter is a good option and many like it .
Most Folks go with the CAI for the eye-candy appeal and cause it sounds cool cause you can hear the turbos spool up better , same with AirAid .
I'd say, based on testing I participated in... that you could just use the stock airbox and filter for optimum performance. I know the claims made from all the main manufacturers (albeit NOT with a 2013+ SHO). Here's the data I have:
On the day when 4DR and I used my SHO (stock tune) to test 3 sets of the PPE downpipes on the dyno at Black Market Racing/Full Race (catted, Non-catted, and thermal coated catted)... (9 pulls-3 per set) ...We also did the following... in one pull we completely disconnected the OEM airbox from the intake tube (the saxophone tube going to turbos) and set it aside so we just had the tubing and no filter or CAI. We had the hood up, a big cooling fan on the motor, and back to back dynos with the same operator. temp was 79 and humidity was 30%
Result... less than three HP difference (same forTQ) between OEM CAI and filter and no filter or CAI at all.... 2-3 HP is not a significant change and lies within margin of error. I believe that any restriction to air flow in the SHO is after the filter. We know it can use more air than it does bone stock... we got 17HP increase with the PPE DPs over stock DPs with or without the CAI/filter. Currently I believe the stock CAI and filter can deliver all the air the engine can use.
If you want some more sound from under the hood or like it as eye candy... go for it, nothing wrong with that.
But currently I can't personally recommend anything over the stock box based on the data if performance is the issue.
If you want better filtration try another filter. I hate oil filters... I bet you will too, hassle and oil gets where it shouldn't.
That's my 2 cents... sorry to seem like a rant.
I agree with Tom except that oiled filters have always worked fine for me. I've used them in at least a dozen cars over the years. Never the hint of an issue.
Thanks guys, that's a lot of great info! I figured there wasn't much HP to be gained but wasn't sure if I'd get the same spooling sound with just the drop in vs. The full setup?
I guess I should add that I didn't care for the sound of the turbos spooling with my Typhoon. It was kind of raspy to me. But I do have sensitive ears.
The stock airbox dose a good job of keeping the noise down, i dont think you would hear the turbos much with just a drop in filter. I was going to do the drop in on my car but came across a deal i couldnt pass up for the typhoon (thanks DJE =]) . I love it, i have noticed the tubos are alittle raspy like DJE said but its only when under lower boost/easy driving. But when you put your footdown and start making some good boost the rasp goes away and they sound great!
Another CAI thread.....
K&N drop in filter. Apply $250 towards parts that will actually make your car go faster. /thread
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Quote from: SHO n GO on March 11, 2014, 10:07:27 AM
The stock airbox dose a good job of keeping the noise down, i dont think you would hear the turbos much with just a drop in filter. I was going to do the drop in on my car but came across a deal i couldnt pass up for the typhoon (thanks DJE =]) . I love it, i have noticed the tubos are alittle raspy like DJE said but its only when under lower boost/easy driving. But when you put your footdown and start making some good boost the rasp goes away and they sound great!
Thanks! I'm actually glad you noticed what I was talking about. It was the same in mine under low boost acceleration.
I have tried both the drop in air filter from k and N and now have a typhoon. The drop in does not sound any different from the Oem filter. As for performance I did not feel any seat of the pants difference. For the Typhoon performance remains the same however the noise fluff with it is pretty great IMO.
Thanks guys! A lot of great info and I think I'll wait a bit and just go with the entire setup instead of drop in.
I likes the noise the Typhoon makes.
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
I did exactly the same thing - I used PVC drain pipe to plumb from the hole in the airbox to an area in the inner fender that is open to outside air.
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
I did this same thing. Good performance and some extra sound.
Quote from: Brucelinc on March 12, 2014, 04:16:38 PM
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
I did exactly the same thing - I used PVC drain pipe to plumb from the hole in the airbox to an area in the inner fender that is open to outside air.
I'd love to see some pics of where you punched through and what you found in that opening, or at least a description. The additional non engine compartment air source is very interesting to me. That source hopefully should be somewhat protected from water pick up.
Quote from: Larrylu on March 12, 2014, 05:49:56 PM
Quote from: Brucelinc on March 12, 2014, 04:16:38 PM
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
I did exactly the same thing - I used PVC drain pipe to plumb from the hole in the airbox to an area in the inner fender that is open to outside air.
I'd love to see some pics of where you punched through and what you found in that opening, or at least a description. The additional non engine compartment air source is very interesting to me. That source hopefully should be somewhat protected from water pick up.
The hole I made is in the airbox itself. Bottom right side if your facing engine compartment. No water can get there unless you submerge your car in 3.5 plus feet of water. You will have other problems at that point. ;). It still takes in air at same place on front as oem Larry. Get your jig or hole saw out and go to town. Lol
We recommend our Windstorm CAI for the Eco-boost platforms gain up to 10 additional horsepower! We just received a new shipment in. Get yours today!
Quote from: Livernois Motorsports on March 12, 2014, 08:25:57 PM
We recommend our Windstorm CAI for the Eco-boost platforms gain up to 10 additional horsepower! We just received a new shipment in. Get yours today!
Heads up!
Livernois Windstorm had no results on google.
Need a link
I couldn't find windstorm on the site either.
Is it just the Airaid?
Quote from: Larrylu on March 12, 2014, 05:49:56 PM
I'd love to see some pics of where you punched through and what you found in that opening, or at least a description. The additional non engine compartment air source is very interesting to me. That source hopefully should be somewhat protected from water pick up.
I probably wasn't clear, Larry. I didn't make a hole in the inner fender. The only hole I made was in the airbox. If you put a trouble light under the left front bumper area and stick your head over into the left front fender area, you will see that there is an opening there where light and presumably air can come in. I just used 3 PVC drainpipe elbows to go from the airbox to that open area. My homemade "snorkle" is only about 8-10 inches long. I was just trying to get as far from engine heat as possible and as close as possible to an outside air source. I will try to snap a pic this weekend but it is nothing that I would want to patent or anything!
Quote from: Brucelinc on March 12, 2014, 09:36:09 PM
Quote from: Larrylu on March 12, 2014, 05:49:56 PM
I'd love to see some pics of where you punched through and what you found in that opening, or at least a description. The additional non engine compartment air source is very interesting to me. That source hopefully should be somewhat protected from water pick up.
I probably wasn't clear, Larry. I didn't make a hole in the inner fender. The only hole I made was in the airbox. If you put a trouble light under the left front bumper area and stick your head over into the left front fender area, you will see that there is an opening there where light and presumably air can come in. I just used 3 PVC drainpipe elbows to go from the airbox to that open area. My homemade "snorkle" is only about 8-10 inches long. I was just trying to get as far from engine heat as possible and as close as possible to an outside air source. I will try to snap a pic this weekend but it is nothing that I would want to patent or anything!
Thanks for clarifying. I'm obsessed with the idea of going through the inner fender wall for a cooler source. I just have not done the hands on research yet to see if the idea has any merit. Summer is coming!
Larry, I am not sure you will find a cooler source than the stock opening in the front. I looked long and hard at trying something different - even considered a set up like an old Chevelle with cowl induction! Let us know if you come up with something.
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
This is what I wanted to find. This is what I did on my WRX to hear the turbo. I have missed that sound since i stopped driving that car in late 2008. Now aside from detailing I have another project this weekend.
Quote from: Brucelinc on March 12, 2014, 04:16:38 PM
Quote from: Needmoreboost on March 12, 2014, 02:56:21 PM
I have the K&N drop in panel filter with a slightly modified stock airbox. So I get the intake sounds like the Typhoon or Airraid for just the price of the panel. I did this by making a 4 by 3 inch opening down low in the fender/headlight well side of the airbox. So I still get the benefits of cold air from the front via factory intake tube and less restriction than sealed stock airbox. I also opened up the radiator valance where the stock slit for air comes in (about 4x larger) and cut the the weather stripping to open the air flow at the edge where the hood comes down. A little ram airish... Some people like to spend money. :)
I did exactly the same thing - I used PVC drain pipe to plumb from the hole in the airbox to an area in the inner fender that is open to outside air.
with the "snorkel" installed into the fender well do you still get the turbo noise ?
is it as loud as the K&N Typhoon with just the holes cut in the stock air box ?
I think I'll take a look at modifying the radiator valence too. I only snipped of some of the hood weather stripping and put in a K&N panel filter.
I did the "cut-out" airbox thing before as well, and I can attest the sound is nowhere near as loud as it is with the Typhoon.
Quote from: 281Thunder on April 10, 2014, 07:37:34 PM
I did the "cut-out" airbox thing before as well, and I can attest the sound is nowhere near as loud as it is with the Typhoon.
maybe it's just right then ? or not audible enough to justify doing it ?
This is what i did with my GXP. i have thought about doing something similar on the SHO
http://ls1tech.com/forums/ls4-performance/1088073-custom-fwi.html (http://ls1tech.com/forums/ls4-performance/1088073-custom-fwi.html)
I ran better with my stock intake + K@N drop in than the typhoon.
Quote from: Livernois Motorsports on March 12, 2014, 08:25:57 PM
We recommend our Windstorm CAI for the Eco-boost platforms gain up to 10 additional horsepower! We just received a new shipment in. Get yours today!
Any pics bud?
Quote from: FoMoCoSHO on April 10, 2014, 09:20:09 PM
I ran better with my stock intake + K@N drop in than the typhoon.
I'm not at all surprised... Mike had the same experience with AirAid.
I have an AirAid and even though I will more than likely end up with the Fastlane CIA it's worth noting that the top 3 SHO members in the 1/4 all run AirAid .... just a thought
Well, here are my personnal results with CAI and stock air box. Ran car at BSD test and tune this past sat. Weather was nice and track conditions were good. Ran first pass with K&N CAI and did 13.47 @ 102. Took car back to pits, swapped CAI for stock box and K&N panel filter. Went back and car ran 13.32@103. I couldn't believe it, but there it was, ran another run and ran 13.39, also realized I still have TRAC Control still on. Car had LMS Stage4+ in when I did those runs. I've been reading the posts about this debate and wanted to see for myself, and wife said wow too.
Quote from: SwampRat on April 11, 2014, 01:55:31 AM
I have an AirAid and even though I will more than likely end up with the Fastlane CIA it's worth noting that the top 3 SHO members in the 1/4 all run AirAid .... just a thought
With meth I think... overcomes a lot with the added HP.
IMHO...The most valid testing as far as performance is comparison of just the intake system as a variable.
Quote from: bamsho on April 14, 2014, 11:47:38 AM
Well, here are my personnal results with CAI and stock air box. Ran car at BSD test and tune this past sat. Weather was nice and track conditions were good. Ran first pass with K&N CAI and did 13.47 @ 102. Took car back to pits, swapped CAI for stock box and K&N panel filter. Went back and car ran 13.32@103. I couldn't believe it, but there it was, ran another run and ran 13.39, also realized I still have TRAC Control still on. Car had LMS Stage4+ in when I did those runs. I've been reading the posts about this debate and wanted to see for myself, and wife said wow too.
Were cooldowns the same? I maybe doing the same thing soon.
Yes, 15-20 minutes.
Quote from: bamsho on April 14, 2014, 01:20:18 PM
Yes, 15-20 minutes.
Cool. I may have a Typhoon and Airade for sale soon.
I figure with the number of cai's that are gonna end up for sale, mine will end up being a garage decoration. FML.
I read the description on their website as it says something about Windstorm in one of their packages...
no image but it says something about a new tube and an airbox, not an open filter
Hmmmm
Quote from: FoMoCoSHO on March 12, 2014, 08:28:26 PM
Quote from: Livernois Motorsports on March 12, 2014, 08:25:57 PM
We recommend our Windstorm CAI for the Eco-boost platforms gain up to 10 additional horsepower! We just received a new shipment in. Get yours today!
Heads up!
Livernois Windstorm had no results on google.
I have the Airaid on my Flex, sounds cool but the rubber gasket is a joke, not even close to the bottom of hood. My intake air temp will climb from 100 to 155/60 just sitting in staging. seriously thinking about ditching it and modding stock airbox but with a non oiled filter. Turbos pull WAY more air thru filter and will suck oil out of it. I thought I read somewhere about Ford voiding turbo warranty because oil gums up turbos?
Take a look at the Fastlane cai thread.
I have "stumbled" upon some info as to why the OEM performs better.
Here is the modified air box I did. Someone else did it too on his MKS, used PVC pipe, but I used 3" intake flex pipe. It was very tight under the left front head light assembly, that's why I used the flex pipe. Going to order a Frogzskin breathable filter to help keep out bugs and other big debris. Frogzskin is used on newer snowmobiles too keep out snow and snowdust.
Quote from: FoMoCoSHO on April 14, 2014, 09:24:02 PM
Take a look at the Fastlane cai thread.
I have "stumbled" upon some info as to why the OEM performs better.
FMCS... Could you link the post?... There are 3 threads about the Fastlane CAI. TIA
I switched back to my stock intake and went to track. No change in time but IA temps were 20/30 deg cooler sitting in staging. Put Airaid back in tho, Just not the same without the massive noise fluff lol. I also cut the bottom corner near fender opening off Airaid box, Pulled both rubber gaskets off hood, and one off top of wiper cowl so air goes thru underhood. cut back of grille out so now you can see air cleaner thru grill, and I left off that massive shield under motor. stays alot cooler now. Need all I can get in Florida. I think I'm going to cut a slot in core support cover and bend a piece of metal at a 90 so I can block the grille opening back off when it rains like hell down here.
Quote from: Night Hawk on April 10, 2014, 09:24:01 PM
Quote from: Livernois Motorsports on March 12, 2014, 08:25:57 PM
We recommend our Windstorm CAI for the Eco-boost platforms gain up to 10 additional horsepower! We just received a new shipment in. Get yours today!
Any pics bud?
Got mine last week
(http://i559.photobucket.com/albums/ss38/villalobosc/Mobile%20Uploads/20140427_191430_zpstvcx8vvs.jpg) (http://s559.photobucket.com/user/villalobosc/media/Mobile%20Uploads/20140427_191430_zpstvcx8vvs.jpg.html)
Sent from my SM-N900T using Tapatalk
Looks just like my Roush/Airaid
Quote from: bamsho on May 03, 2014, 01:41:03 PM
Here is the modified air box I did. Someone else did it too on his MKS, used PVC pipe, but I used 3" intake flex pipe. It was very tight under the left front head light assembly, that's why I used the flex pipe. Going to order a Frogzskin breathable filter to help keep out bugs and other big debris. Frogzskin is used on newer snowmobiles too keep out snow and snowdust.
Thanks for the pics and info. Do you get much noise fluff out of this? That was the only reason I was considering doing it. Thanks.
No, I didn't here any extra noise like I did with my K&N CAI setup. Just need 3in hole saw and flex pipe. Not sure how tight it is behind head light of an MKS.
I recommend our Windstorm line of CAI. We have seen gains of up to 15 HP. Unfortunately with our testing we did not see much of a gain over the stock intake with the K&N CAI.
Quote from: Livernois Motorsports on May 05, 2014, 11:18:18 AM
I recommend our Windstorm line of CAI. We have seen gains of up to 15 HP. Unfortunately with our testing we did not see much of a gain over the stock intake with the K&N CAI.
I assume this is for the 2010-12 SHO? (That is the only application a search pulled up on your website.) What are the requirements to achieve these gains with the Windstorm CAI (tune/fuel/exhaust, etc for example)? Are the dyno sheets publicly available? TIA.
Quote from: SHOdded on May 05, 2014, 12:20:37 PM
Quote from: Livernois Motorsports on May 05, 2014, 11:18:18 AM
I recommend our Windstorm line of CAI. We have seen gains of up to 15 HP. Unfortunately with our testing we did not see much of a gain over the stock intake with the K&N CAI.
I assume this is for the 2010-12 SHO? (That is the only application a search pulled up on your website.) What are the requirements to achieve these gains with the Windstorm CAI (tune/fuel/exhaust, etc for example)? Are the dyno sheets publicly available? TIA.
This is a Re Branded AirAid CAI .. curious as to whether LMS's buying power will result in a lower price than what the AirAid sells for elsewhere .
That would be a good thing .Even though many don't like the design it is still popular and MANY of us use it.
I still have mine .
That would be a good thing for sure.
Cool name you guys choose. I like it
Quote from: SHOdded on May 05, 2014, 12:20:37 PM
Quote from: Livernois Motorsports on May 05, 2014, 11:18:18 AM
I recommend our Windstorm line of CAI. We have seen gains of up to 15 HP. Unfortunately with our testing we did not see much of a gain over the stock intake with the K&N CAI.
I assume this is for the 2010-12 SHO? (That is the only application a search pulled up on your website.) What are the requirements to achieve these gains with the Windstorm CAI (tune/fuel/exhaust, etc for example)? Are the dyno sheets publicly available? TIA.
I would also like to know what the effects to IAT's are as they get very hot with the K&N and the stock intake is very good at keeping temps close to ambient. It is not uncommon to be 1 or 2 degrees under ambient even at 70 degrees.
At this point, I'm skeptical of any CAI with the car in stock form.
However, I'm keeping an open mind and would like to see some data of a CAI on a modded car.
My plan is to slap my k&n on after the bolt ins and tune are in and re-dyno back to back.
That's actually the only reason I haven't sold it or turned it into garage art.(At least it's pretty, lol.)
I ran against a friend of mine this past Friday at the track, both 2013's and identical mods except he has a CAI and I have a drop in K&N. Every time we lined up against each other he was .01-.03 faster than me. He also has the Flower wheels and mine came with the 19's so that is a small difference too. Same cool down time and everything, so that make me think the CAI does add a little to you car.
Quote from: navbtcret on May 06, 2014, 09:10:09 AM
I ran against a friend of mine this past Friday at the track, both 2013's and identical mods except he has a CAI and I have a drop in K&N. Every time we lined up against each other he was .01-.03 faster than me. He also has the Flower wheels and mine came with the 19's so that is a small difference too. Same cool down time and everything, so that make me think the CAI does add a little to you car.
A different finding than most have reported.... warrants a bit of analysis I think.
Do you have the timeslips you could post? Interesting to see them I think. The main variable not controlled is primarily the driver if both cars are either PP or non-PP. I wonder if the drop-in is the problem....
Other member tests were same driver, same car, different runs (back-to-back) with AM CAI vs completely stock intake... 4DR and bamsho found stock faster in their trial conducted this way.
Removing the entire filter box (saxophone only open intake) vs stock showed no difference on the dyno in my '13 SHO nonPP... but of course that's not "real world"
Quote from: BiGMaC on May 03, 2014, 03:24:36 PM
Quote from: FoMoCoSHO on April 14, 2014, 09:24:02 PM
Take a look at the Fastlane cai thread.
I have "stumbled" upon some info as to why the OEM performs better.
FMCS... Could you link the post?... There are 3 threads about the Fastlane CAI. TIA
bump.... What's the secret FoMoCo?
Preliminary prototype pics of the CAI that spartan27 is working on are promising , however I am not at liberty to share .
Coming along nicely I think .
If we line up 2 cars for comparison, first we have to verify they are identical in every known respect. The lanes should be identical in every known respect. Then dyno/dragrace them. Then compare changes one by one. Has anyone established where the cutoff is for time differences to reach a level of significance? Is 0.01 significant, or is 0.05 significant, etc. Having a 0.1 second difference is probably a no-brainer :D
Quote from: SHOdded on May 06, 2014, 10:35:07 AM
If we line up 2 cars for comparison, first we have to verify they are identical in every known respect. The lanes should be identical in every known respect. Then dyno/dragrace them. Then compare changes one by one. Has anyone established where the cutoff is for time differences to reach a level of significance? Is 0.01 significant, or is 0.05 significant, etc. Having a 0.1 second difference is probably a no-brainer :D
A statistician.... But a good point... When is P< .001 (the level of significance in medical stuff)?
(For you non-statisticians this means that what was reported has < 1 chance out of 1000 of being coincidence)
Quote from: BiGMaC on May 06, 2014, 09:44:09 AM
Quote from: navbtcret on May 06, 2014, 09:10:09 AM
I ran against a friend of mine this past Friday at the track, both 2013's and identical mods except he has a CAI and I have a drop in K&N. Every time we lined up against each other he was .01-.03 faster than me. He also has the Flower wheels and mine came with the 19's so that is a small difference too. Same cool down time and everything, so that make me think the CAI does add a little to you car.
A different finding than most have reported.... warrants a bit of analysis I think.
Do you have the timeslips you could post? Interesting to see them I think. The main variable not controlled is primarily the driver if both cars are either PP or non-PP. I wonder if the drop-in is the problem....
Other member tests were same driver, same car, different runs (back-to-back) with AM CAI vs completely stock intake... 4DR and bamsho found stock faster in their trial conducted this way.
Removing the entire filter box (saxophone only open intake) vs stock showed no difference on the dyno in my '13 SHO nonPP... but of course that's not "real world"
They are both non pp, he has over 35k on his car and mine is just under 9k. Identical mods with the exception of the cai, tunes are both Livernois 3 bar v8 tunes. We swapped lanes as well with the same results. I will post up slips later, busy right now at work and slips are at home. He has the 20" flower rims and I have the 19" stock rims, 2013's both and he has the adaptive cruise but I do not. Those are the only differences in the cars.
We were both in sport mode with traction control off.
It would be interesting to see a dyno of the stock airbox but no filter. I found other tests that show the airbox and snorkle work together for proper flow. I like Big macs idea of testing without an airbox, but that will mess up the pressure/flow of the Intake vs just removing the filter.