YSR Pro Sport Digressive Series Coilovers - Porsche 911 GT2 2001-2005 (996) fits_2005-2011`Audi`A6 Valves Closed: The system quiets

Valves Closed: The system quiets down significantly

ideal for long drives or discreet use

Both systems come with the Air Lift Performance 3 controller

Fits Non-AMG models only

Then the Valvetronic Designs Truck/SUV Muffler Kit is the perfect solution for you

YSR Pro Sport Digressive Series Coilovers - Porsche 911 GT2 2001-2005 (996) fits_2005-2011`Audi`A6 Valves Closed: The system quietsFRONT REAR SPRING RATES 6k 12k UPPER MOUNT Pillowball w Camber Plates Aluminum w Hardened Rubber Bushings Application Notes: Fits GT2 Model Only The Pro Sport Digressive Series Coilovers from YSR USA are designed to provide motoring enthusiasts with exceptional handling characteristics while maintaining a balanced ride comfort. Digressive valved coilover systems are designed to provide a stiffer damping force at low shaft speeds while allowing for