QA1 Adjustable Upper Trailing Arms - 1973-1981 Oldsmobile Cutlass Supreme eibach-bump-coil-spring-shim-kit BC Racing ER Series Coilovers

BC Racing ER Series Coilovers for the 2005-2012 Suzuki Swift Sport (ZC31S) put race-grade adjustability in reach of the serious track-day driver

1971 Ford Mustang

The KSport Version RR Coilover Kit is built for 2002-2007 Subaru Impreza WRX owners who want a track-ready damper without jumping to a remote reservoir setup

2020 Audi A4 Avant 1

QA1 Adjustable Upper Trailing Arms - 1973-1981 Oldsmobile Cutlass Supreme eibach-bump-coil-spring-shim-kit BC Racing ER Series CoiloversAll Upper Tubular and Lower Boxed Trailing Arms for the 1973 1981 Oldsmobile Cutlass Supreme use polyurethane bushings on both ends, while upper adjustable and lower tubular Trailing Arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. This keeps the tires planted firmly on the ground for improved traction and a more predictable, better handling car.