Brian Crower Beehive Single Valve Spring & Titanium Retainer Kit for A90 Toyota Supra B58 gsc s2 4″) smoothly tapering down to

4″) smoothly tapering down to match the turbo inlet

resulting in the ECU cutting the power output of the vehicle

Size -4AN

Black Silicone

Layout files interchangeable with all versions of the CD-5 Carbon

Brian Crower Beehive Single Valve Spring & Titanium Retainer Kit for A90 Toyota Supra B58 gsc s2 4″) smoothly tapering down toBrian Crower Beehive Single Valve Spring & Titanium Retainer Kit for A90 Toyota Supra B58 Designed for high rpm, BC beehive valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. Kit PN: BC0326 Spring PN: BC1326 Retainer PN: BC2325 BC2326