new here and mod questions

[angieSHO]

Ok thanks. You've given me some great input. I'll have to take it to my exhaust man and get his opinion. I've heard about the BVOs but I'll have to research it some more.

[FoMoCoSHO]

Welcome aboard! If you really want to hear your turbo's, you'll need a complete exhaust from the turbo's back. Other then that CAI will give you slight increase in sound.

That and a nice increase in intake air temp. (K&N)

I reverted back to stock and the drop in temp was shocking (I didn't have torque when I installed it so I didn't know any better)

The K&N heat soaks horribly and past a certain point, it doesn't recover.

I saw max temps of 138 with the K&N and it never got anywhere near ambient once it was heated up, even if you took it on the highway.

In the city, the stock piece recovers quickly never going above 118,On the highway the car will be + or - 1.5 of ambient.

It wouldn't shock me if the K&N made the car slower.

Any gain in flow is lost by the hotter, less dense air being consumed.

Other than that it's a well made, looks good, and really lets you hear the turbos and the diverter valves well.

[SoCalSHO]

Or you could run with the KN drop in filter. No heat gain. I switched from Airaid back to a drop in.

[EcoBrick Bob]

Downpipes add HP.  Most exhaust options don't make much difference.  If you want "Noise Fluff" (which is what I wanted )just add a pair of Magnaflows in place of stock mufflers.  Paint them black like stock and the dealer won't know the difference.

Haven't tried K & N intake, but AirAid definitely increased my IAT Temps and kept temps from cooling down quickly.  If you want a working CAI then do what 4 DR did and make sure the round filter is into the fender area behind the drivers side headlamp.  I crafted a similar setup and it definitely runs cooler than other CAI's including stock.  Again... it's mostly "Eye Candy"... but that's what many mods are, and that's a GOOD THING!

Looking back, the 2 most beneficial mods I have done are the H & R's... with max performance tires - Handling is terrific...   and the tranny tune.  Tranny tunes come with the performance tunes and Torrie's (Unleashed Tuning) is definitely the best from my own driving experience.  Performance part is also just as good, if not better than others, but in DD mode, smooth shifting is most rewarding.

H & R Springs do not "Pogo" in my opinion, and I have been running them for over 50,000 mi on our DD Flex.  This is with "Max Performance" tires that are inflated to around 40 PSI.
Ride is firm but not rough or Pogo... My wife prefers it to our G8's which have stock suspensions.

[Darkside]

-H & R Springs do not "Pogo" in my opinion, and I have been running them for over 50,000 mi on our DD Flex.  This is with "Max Performance" tires that are inflated to around 40 PSI.
Ride is firm but not rough or Pogo... My wife prefers it to our G8's which have stock suspensions.

But, you are talking a Flex and not the Sho.  My springs absolutely cause a slight pogo in certain conditions.  Its not bad but its still there.