Bilstein PSS9 Coilovers Audi S4 RS4 (B6/B7) BMW Gear changes with our stainless

Gear changes with our stainless steel shift knob have been best likened to a bolt-action rifle

Bringing in cooler outside air can result in more power

a lightweight flywheel is included with each R53 clutch kit

A must have for any car looking to exceed 400 horsepower

Bilstein PSS9 Coilovers Audi S4 RS4 (B6/B7) BMW Gear changes with our stainlessUtilizing Bilsteins monotube shock absorber design for heat dissipation and ride control, the PSS9 Coilover System for the Audi A6 (C5) adds a matched performance spring and threaded ride height adjuster to provide a complete suspension system for a vehicle. The fully adjustable monotube gas shock absorbers offer nine precise compression and rebound settings, from comfort to competition. The front and rear progressive rate springs allow for the