Simply put - Wavetrac is the only gear diff on the market that does not lose all drive when one axle is unloaded. Axles become unloaded in aggressive driving, track cornering, extremely slick surfaces, etc. It happens more than most...

C7 4.0 TFSI High-Performance cast manifolds

THE-Tuner UPGRADE AUDI RS4 / S4 B5 Oil COOLER

THE- RS4 / RS6 Oil Cooler Thermostatic Adapter Product information: This oil adapter can be installed as a replacement for the original in the Audi RS4 B5, as well as in the S4 B5. The opening temperature is 80 degrees. The fittings are...

Oil separating catch can system for 2.7 TT V6 engine cars.

RS4 pressure pies to S4 intercoolers

THE-Silicone hose kit from lower pressure pipes to intercooler Product information: These silicone hoses are only to be used together with our 63mm pressure pipes (from the turbocharger). The lower connection diameter of the intercoolers...

Bosch 82mm throttle body that has been machined by THE TUNER to fit the OEM RS4 or our HF intake manifold

THE- RS4/S4 Gearbox Oil Line

B5 High Flow Intake Manifold

THE-102mm intake hose Product information: The THE intake hose is specially designed for use in the RS4/S4 B5. The inner diameter is 102mm and can be mounted directly on our large MAF housing. To prevent the hose from contracting, two...

THE-Upgrade Manifold Template With the help of this template guide, it is possible to transfer the exact flange pattern of the THE-Upgrade RS4 / S4 B5 intake manifold to the cylinder heads. The protruding edges are marked with a pen, to...