Articulating weight jack: Enables precise adjustment of rear suspension spring rate for optimal handling
Jacking-free adjustment: Allows tuning without lifting the car, saving time and effort
BMWCCA and SCCA legal: Meets official standards for autocross and track use
Durable metal construction: Ensures long-lasting performance under demanding conditions
Easy installation: Designed for quick setup from underneath the vehicle
Summarized by Shop
Articulating weight jack for the rear of BMW e46 race cars.
Developed by Ground Control to address the issue of inconsistent spring rate caused by bending of the spring during suspension movement.
As an added bonus, this is adjustable from underneath the car without jacking the car up. BMWCCA legal and SCCA IT legal.