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Custom tuning is essential to fully optimize the FX-350 for your Audi RS6 Avant’s specific configuration and driving conditions
delivering approximately 90% more fuel flow
Unlock the full performance potential of your Porsche Panamera GTS / Turbo / Turbo S (971) with the Spool Performance FX-350 high-pressure fuel pump upgrade
Larger/Better-flowing Turbine Wheel for increased exhaust efficiency
- Capable of supporting 900+ WHP
Audi D5 S8 4.0L ECU and TCU Tune Bundle Pick a Tune:Stage 3 Custom tuning is essential toThe EA825 engine and AL552 Transmission found in the S8 have proven to be an incredible platform that can handle upward of 1000whp while retaining its factory reliability. We have been able to produce 860WTQ and 730WHP with an upgraded HPFP and E70 and plan to push the platform further with upgraded turbos. Tune Features ECU Vehicle speed limits removed Left foot Breaking enabled Refined Acceleration Maximized performance Access to 91, 93, and 100