K-Tuned K2-Circuit Coilovers 12-13 Honda Civic Si / 12-15 Base Honda Civic (9th Gen) - 14K front and 12K rear springs

Item SKU: KTD-K21-FG4-F14K/R12K

K-Tuned K2-Circuit coilovers for the 2012-2013 Honda Civic Si and 2012-2015 base Honda Civic, part of the K-Tuned K2-Circuit line. This kit uses 14K front springs, rated at 785 lb/in, and 12K rear springs, rated at 672 lb/in, with K-Tuned's standard linear Race Valve.

• Track-focused setup: The K2-Circuit line is built for circuit racing, time attack, and drag racing. The 14K/12K spring combination and race-oriented valving are intended to keep a 9th-gen Civic controlled during cornering and repeated track sessions.
• Race Valve dampers: This SKU uses the standard K2 Race Valve. Its linear damping becomes firmer as the strut moves through its travel. That works well for track use, though aggressive curbing can feel harsh.
• 32-way damping adjustment: You can adjust damping to suit the track, tire, and driving style without changing the preset rebound design. If you need independently adjustable rebound and compression, that is the separate K2 Pro-Circuit two-way system.
• Ride height, preload, and travel: Adjustable aluminum spring perches allow ride-height changes along with preload and travel adjustment. This stuff matters when you're setting corner balance, clearance, and usable suspension travel instead of just dropping the car.
• Strut construction: Heat-treated steel pistons, needle valves, proprietary damper oil, and high-heat double seals make up the damper assembly. The oil is intended to maintain its viscosity under heat, helping the dampers stay consistent through track use.
• Upper mounts: Pillow-ball upper mounts are included. Since this Civic uses McPherson struts, the kit also includes adjustable upper camber plates for dialing in alignment at the front.
• Finish: K-Tuned uses a combination of powder coating, electroplating, and anodizing across the system.

This is the 14K front and 12K rear recommended-rate package, not a street-oriented coilover. It gives a 9th-gen Civic a firmer, more track-directed setup with height, damping, and front camber adjustment in one kit. K-Tuned notes that spring rates can be changed within plus or minus 4K by contacting them directly, and some light rear installation modification may be required.