Four Ring Performance • MSRP: starting at $1186
The Four Ring Performance racing turbo manifold for all AAN and 3B engines in the ’92-97 Audi S4/S6 has a narrow-angle merge collector as well as short primary tubes constructed from large-diameter pipe. It also boasts a rotational firing layout that can freely flow to 10,000rpm. The turbo manifold is made of high-grade schedule 40 thick-wall tubing to support up to 1000hp. It’s available with T3, T4 or T6 turbo flanges and a TiAL wastegate flange. Other flange options are available on request and the part carries a lifetime guarantee against cracking and burn-through.