I have started to do quite a bit of work of my 1999 MT quattro A4. SO far the parts include
GTRS Turbo
Genesis 415 injectors
Unitronics tuning
Adjustable FPR
Full Exhaust
Testpipe
VR6 MAF
I know there are other things to add like 3" inlet pipe kit,FMIC,water/meth, but what part would help the overall performance of the turbo, like cooling it or helping it breath more?

 

i think it's time to lower the car now so you can put that power to better use

 

I think if you're putting all that money into the engine then it's absolutely time for a set of A8 brakes and like Hiwords said some suspension parts to keep from overwhelming the setup of the chassis. Stuff like that isn't glamorous like turbo parts but you'd be a fool to ignore it and run a car with 2-3x the OEM power output and think OEM brakes and suspension are going to be up to the task.

 

your running a gtrs on the stock sidemount? talk about heatsoak.

i would either get a FMIC setup or suspension stuff.

although i agree upgraded brakes are useful, if you get the wrong pairing of front and rear you can really increase the stopping distance rather then the opposite. even if you upgrade to brembos in the front and leave the rear that screws with your brake power balance between the front and rear. if you change the way braking power is distributed without doing your homework first you can be doing more harm then good.

also you can have 500whp on stock brakes, its not like the car weighs substantially more. as long as you dont drive at a higher speed it doesnt matter to the brakes if the car is bone stock or super modified. a brake upgrade is no more important to a big turbo motor then it is on a stock car. that being said, people seem to like the A8 brakes. i would stay away from porche boxter brakes because even though they fit they arent well matched for our cars.

 

I agree that you CAN have 500hp on stock brakes but the potential for speed with that power is a lot greater and most of us don't mod at that level for show. Being that he's putting that money into the engine, chances are he's gonna use it. It just makes sense to balance the whoa and go. No, it isn't absolutely necessary but it IS prudent.

Going too big up front on brakes without a commensurate increase in the rear can definitely screw up the bias, but speaking from experience, going with a mild upgrade like the A8 setup is cost effective and street effective - it looks good, doesn't cost much, and makes a definite improvement in braking without screwing up the biasing.

Definitely gonna want a bigger/more efficient IC for sure - you're gonna bake the OEM IC in a hurry.

 

Ok thanks for the info and opinions. Suspension and brakes is a new aspect I had not thought of. However, Like ghost said I was thinking of a Fmic or even a TIP kit, but I definitely understanding what your saying about the braking and suspension. Hopefully I will be able to get all this on my car after too long. Thanks again

 

sounds like you're def on the right track so far, and all the suggestions so far are great IMO.

i'd definitely get suspension and brakes. VERY necessary with that type of power output