K-Tuned K2 Circuit Coilovers - 88-91 Civic/CRX; 90-93 Integra - Front 16K / Rear 14K - KTD-K21-EFApplications: 88 91 Civic EF 88 91 CRX 90 93 Integra DA Spring Rate: F 16K R 14K Note: * Springs rates can be changed + 2K (plus minus). If you want custom spring rates please contact us directly. K2 Circuit Coilovers are designed for cars destined for the track; whether that's circuit, time attack, or drag racing. All K2 Circuit Coilovers feature 32 way dampening and stronger internals to handle all the abuse you can throw at them. Stiffer spring