Performance Shock, inc have been based at the Motorsports Industrial Park at Sonoma Raceway, (Sears Point) in Sonoma, California since 2006.
We specialize in Sales & Service of High Performance and Racing Shock Absorbers, Springs, clutches & racing hose fittings.
PSi is your premier Factory Authorized Sales and Service Agency for all Ohlins, Koni, Penske, AST/Moton, Bilstein, TracTive and JRZ shocks, ZF-Sachs Clutches and Goodridge fluid transfer products!