Description HPA’s performance program for the 4.0TFSI leverages our past 28 years of knowledge with building and tuning the VR6 and 2.0T platforms. The 4.0L BiTurbo TFSI engine was co developed by Bentley and has wide application in Audi’s product line – found in the S6, S7, A8/S8, and RS7. With stock power ranging from 420HP 406ftlbs in the S6 to an impressive 560HP 516ftlbs in the RS7, the 4.0 TFSI has proven headroom and potential for power upgrades. Paired with an upgraded downpipe, tune, fuel, and cooling, this hardware package is capable of over 750HP / 715ft-lbs.

The factory RS7 turbo cartridge is the perfect upgrade for your Audi S6, S7 or A8. Designed to work seamlessly with the 4.0TFSI, the RS7 hardware provides a nice jump in performance over the stock S6/S7/A8 turbo. When paired with an upgraded downpipe, tune, and cooling, this package can deliver upwards of 750HP. New compressor covers are available to purchase making this a quick and easy upgrade, or send your stock covers in for modification. Applications 2012+ S6 / S7 (C7) 2012-17 A8 2013-17 RS7 (FACTORY REPLACEMENT) 2012-17 S8 (FACTORY REPLACEMENT)