Bilstein B12 13-16 Porsche 911 Carrera 4 H6 3.4L/4S H6 3.8L Front and Rear Suspension Kit 1999-porsche-911-carrera-esi4399134 Borla(r) system has a valve

Borla(r) system has a valve simulator to prevent the Check Engine Light from coming on

BORLA Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower

System contains NPP valves

Borla(r) Cat-Back(tm) & Axle-Back multi-core technology designed to unleash hidden horsepower

Bilstein B12 13-16 Porsche 911 Carrera 4 H6 3.4L/4S H6 3.8L Front and Rear Suspension Kit 1999-porsche-911-carrera-esi4399134 Borla(r) system has a valveBilstein B12 (Pro Kit) suspension kits include a complete set of Bilstein Performance dampers paired with Eibach (Pro Kit) springs that provide moderate lowering between 24 40mm (depending on application). These kits offer dampers and springs that are tuned for each specific application to provide the best fixed height lowering solution. Bilstein B12 (Pro Kit) suspension kits provide the perfect combination of suspension dynamics, quality and