Bilstein B4 1980 Audi 4000 Base Rear Twintube Shock Absorber 2014-nissan-370z-base-esi8510043 Independent dyno tests have shown

Independent dyno tests have shown incredible gains of 15-20 horsepower & torque

This 3" diameter True Dual Quad Tip BORLA(r) Cat-Back system features a Merge X-Pipe for increased performance and improved sound

That now famous

25" Borla(r) Cat-Back(tm) System (PN 140045) is a True Dual exhaust with a H-Pipe and the famous Borla(r) XR-1 Race-Bred Mufflers for increased performance and improved sound

Bilstein B4 1980 Audi 4000 Base Rear Twintube Shock Absorber 2014-nissan-370z-base-esi8510043 Independent dyno tests have shownBilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality. Restores original driving comfort, handling and safety High power reserves for maximum