Well here it goes. I'll do my best to be concise but descriptive. Hopefully the pictures do the talking for me.
Overall this is a pretty straightforward job.
SPRAY DOWN ALL BOLTS WITH PB BLASTER SEVERAL TIMES PRIOR TO REMOVAL OF OEM DOWNPIPES.I squirted mine down 3 separate times within 2 weeks leading up to day of installation.
TOOLS:Downpipe to turbo flange nuts-x6. 15mm socket. 1/2" drive w/ extensions and 1/2" universal joint. You'll do this 6 times. 3 times/per downpipe.
Downpipe to cat-back-x4. also 15mm
7/8" or 22mm line wrench with breaker bar for front primary o2 sensor(the only one you HAVE to remove while downpipe is still on the car). You can also use a torch instead of breaker bar.
STEP 1: ***BEFORE YOU JACK THE CAR UP****
UNPLUG BOTH PRIMARY o2 SENSOR WIRING HARNESS'FRONT PIPE PRIMARY-looking straight down behind the pass side cooling fan.
REAR PIPE PRIMARYThis one's a little tricky to find. behind the rear cam cover on passenger side. directly below the oil separator. It's a way down there and a little frustrating to get seperated.
NOW RAISE THE CAR AS THE REST OF THE WORK IS DONE FROM UNDER THE CAR.
FRONT SECONDARY O2 HARNESS
REAR SECONDARY
I started with the front downpipe removal. You need to remove the front primary o2 sensor. I didn't get a pic of this step but i used a 7/8" wrench with a breaker bar. With that out of the way you've got a straight shot at the top turbo flange nut.
REMOVE 3x15mm TURBO-DOWNPIPE NUTS.easy access to all 3 w/ extension and universal joint.
other 2 nuts being removed not pictured.NEXT DISCONNECT THE DOWNPIPES FROM THE REAR CAT-BACK.2x15mm. also not pictured. downpipe will fall right out after this.
MOVING ON TO THE REAR DOWNPIPE:
REMOVE PASSENGER SIDE WHEEL.straight shot from there
Then remove other 2 downpipe-catback nuts.
THIS DOWNPIPE REQUIRES SOME CAREFUL TWISTING FOR REMOVAL. BE CAREFUL NOT TO BANG AROUND THE o2 SENSORS.ONCE YOU'VE DROPPED THE PIPES IT'S A GOOD TIME TO CHECK OUT THE STATE OF YOUR MICRO-TURBOS. 
LOOKIN GOODNOW THAT BOTH PIPES ARE OUT-REMOVE THE OTHER 3 o2 SENSORS AND MARK THEIR POSITION IN THE DOWNPIPE.Don't think it was completely necessary but i torched the flange of the sensors and they came out like butter.
INSTALLATION IS PRETTY MUCH THE REVERSE OF THIS.The rear downpipe is a bit of a chore to twist into place. I had to remove this bracket to make it happen and it was still real tight. they're 10mm bolts.

You will need new hardware for the downpipe to cat-back as the OEM bolts are pressed into the downpipes. 4 bolts/nuts and washers.
LOOSELY CONNECT THE BACKSIDE OF THE DOWNPIPE TO THE CAT-BACK TO HELP IT KEEP IN PLACE. SLIDE THE NEW DOWNPIPE OVER THE TURBO STUDS AND START THE NUTS. TORQUE DOWN THE TURBO SIDE 1ST-THEN CAT-BACK SIDE.
ONCE YOUR NEW DOWNPIPES ARE IN PLACE RE-INSTALL ALL 4 OXYGEN SENSORS AND PLUG BACK INTO THE HARNESS'. (use anti-seize) SIT BACK AND ADMIRE THE BEAUTIES.BEFORE YOUR 1ST TEST DRIVE!! 

Sorry the pics are so massive-click them to get full frame view.and anyone feel free to add suggestions/corrections. None of the current writeups have pics so i wanted to fill the void. Hopefully some will find it useful.