ok i just bought a btreetported nad freshly rebuilt s5 motor and i got a turbonetics 62-1 turbo for it, and i got a catback thats it what else should i pic up im looking for around 400 hp which i know i can get with that turbo but what supporting mods will i need and the best place to get them

 

400 hp? That's quite a big goal. You're gonna need to modify most of the engine to hit that.

 

Standalone ecu....all the supporting fuel mods.....fmic,aluminum rad, etc....just to start

 

Deep pockets!

 

The search button..

 

A brain..