Mazda RX7 (FD3S) - Bilanx Competition

Bilanx Competition coilovers for the Mazda RX-7 (FD3S) — built, valved and dyno-verified in-house by Shaftworks USA. Every set is custom valved for your car, your spring rates and the way you drive it, so it arrives ready to run rather than tuned for an average driver who doesn't exist.

Pick your damper

• Bilanx ONE — single adjustable with a 32-position adjuster. Every click makes an equal, repeatable change you can feel. The right choice for track days, autocross and club racing.
• Bilanx P3 — triple adjustable: rebound plus separate high- and low-speed compression for full race tuning.

What's in the box

• Four Bilanx Competition dampers, custom valved on our shock dyno
• Swift Springs, with rates matched to your application
• Top hats
• Dyno graphs for your exact set

Why Bilanx

• High-flow aluminum piston — composed on the drive to the track and controlled once you're on it, with little compromise between the two.
• Travel done right — the coilover package is engineered to maximize both droop and compression travel, so setting ride height isn't guesswork.
• Proven across disciplines — autocross, drift, road race and rally setups, built on 15+ years of racing.

Before you order

Fill out our custom valving form before checkout so we can spec the valving to your car, weight, tires, power and the events you run. Questions on fitment or spring rates? Contact us.

California Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.