Comp Cams 1.550 Nascar Valve Spring Performance Lighting Left-side fitment — Engineered for

Left-side fitment — Engineered for driver-side installation only

Hard panel construction matches factory optics and durability

This is a manual tool with no wear-out mechanism

The silicone won't degrade from standard coolant or boost fluid

designed to provide long-lasting durability and superior performance

Comp Cams 1.550 Nascar Valve Spring Performance Lighting Left-side fitment — Engineered forCOMP Cams Valve Springs By Design DUAL Manufactured from Super Clean wire to eliminate surface flaws and fissures Dual spring design capable of handling the increased lift in extreme stress applications Designed for superior strength and durability Adds valve train stability in race, street strip and street performance applications Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing