Firestone Coil-Rite Air Helper Spring Kit Front 63-99 P30 (W237604100) Drivetrain>Clutch Covers 25:1 ratio pedal arms

25:1 ratio pedal arms

each with multiple bar-and-plate core sizes and your choice of same-side or opposite-site outlets

it is Turbosmart's most versatile BOV

If you plan to upgrade anything further upstream on a 330i

with a map switch in the provided mobile app

Firestone Coil-Rite Air Helper Spring Kit Front 63-99 P30 (W237604100) Drivetrain>Clutch Covers 25:1 ratio pedal armsIf you're looking for a smoother ride for your vehicle that has a coil spring suspension, Firestone Coil Rite air helper springs are what you need. Designed to fit inside existing coil springs to create a variable spring rate, Coil Rite will level your vehicle and assist with more effective braking and handling, even under heavy loading and adverse road conditions. Coil Rite enables you to control the air pressure in the air helper springs so you can