The SRM850 B9 S4/S5 Hybrid Turbo utilizes a GTX3582R Gen 2 ball bearing cartridge and precision machining of the turbine housing and compressor cover to retain OE fitment.  PTFE stainless steel braided line package included with the turbo.  Core return...

Cool to the core. Presenting the AWE ColdFront™ Intercooler for the Audi B9 S4/S5 3.0T. 130% increase in frontal surface area over stock 83% increase in volume over stock Fits securely behind the stock crash bar, pure bolt-on All aluminum...

Genuine Borg Warner K04 upgrade for the B7 A4 2.0T. This is not a full bolt on kit. This will require tuning and fuel injectors to reach the full potential of this turbocharger. The Borg Warner K04 is capable of...

Upgrade the stock K03 turbos on your Audi 2.7T with genuine Borg Warner RS4 K04 turbochargers. This is for a pair(Right & Left). These will produce an overboost condition if not properly tuned. We have have sold, built and tuned...

Don't sacrifice quality while rebuilding the K04 turbochargers on your Audi 2.7T. These are genuine Borg Warner K04 center sections. We have made 400+whp on these turbochargers and seen them last over 100k miles without developing shaft play. *Not all...