Brian Crower Dual Spring & Steel Retainer Kit w/Seats Honda Civic Si 2006-2011

Designed around high RPM engine durability and performance, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures when VTEC is singing. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. We recommend upgrading valve springs and retainers when upgrading cams due to the more demanding conditions in the head. Steel retainers are a cost effective upgrade while the titanium retainers will lighten your valve train significantly.

California Prop 65 Warning: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.p65warnings.ca.gov.