Integrated Engineering Valve Spring & Retainer Kit | C7 S6 · S7 · RS7 · D4 A8 · S8 | 4.0L Turbo V8 F10 M5 4.4L Turbo V8 [S63] all without the shocks loading

all without the shocks loading the tires

Increases horsepower while minimizing power-robbing heat soak

Important note: many Audi TSI models may require some some custom work to lengthen the passenger side inlet hose

Typical aftermarket flex sections found on many cheaper exhaust parts are the primary failure point

but also shows that like us

Integrated Engineering Valve Spring & Retainer Kit | C7 S6 · S7 · RS7 · D4 A8 · S8 | 4.0L Turbo V8 F10 M5 4.4L Turbo V8 [S63] all without the shocks loadingThe IE Performance Valve Spring & Titanium Retainer kit features optimized spring rates specifically designed for your Audi 4. 0TT EA824 engine (C7 C7. 5 S6, S7, RS7, & D4 S8). Engineered with exacting specifications to provide proper valve control preventing valve float in high power and high revving applications. Features: Protects against engine failure from valve float Safely increase your rev limit and power band Specialty nano peened springs for