The 2.7tt motor that came in the Audi S4 B5 chassis is one of my favourites. A large V6 gave it good drivability, and coupled with the relatively small standard K03 turbos the spool and power build is very linear. Here is a S4 receiving an intercooler upgrade consisting of RS4 coolers and piping. At the same time all new silicon hoses from 034 Motorsports were installed, along with new 710n diverter valves. With some new brackets and some careful bumper trimming, the whole install looks factory and you’d never know it was there.
