BC Racing Coilovers ZR 06-12 GS300/350 (R-21-ZR)The BC Racing ZR Series Coilovers offer the most adjustability of any BC Racing Coilover System to date. Each ZR Series Coilover System is track tested and developed specifically for racers looking for more damping adjustability than the ER or HR Series can provide. The ZR Series offers 15 clicks of low speed compression adjustment, 12 clicks of high speed compression adjustment, and 30 clicks of rebound adjustment. They also offer full height

FlashProManager Windows software

5° of toe change

All black mounting equipment retains OEM+ aesthetic under the hood

Our SPL SOLID Series Bushings are precision CNC machined from Billet 6061 Aluminum for an accurate fit

like all of our Injen performance parts

cooler and is more resistant to detonation

real time programming

Our Double Adjuster is machined from 4130 Chromoly and is electroless nickel plated for corrosion resistance

Custom molded 4-ply silicone allows for all components to be safely attached without obstructing airflow

Mono-Tube Damper

Adjustment ranges:  On a 2010 GT-R test car that was lowered 1 inch

All Silvia models (with the exception of CA18 models) are factory fitted with high impedance injectors so no change is required