Comp Cams DUAL SPRING ASSEMBLY Turbo Exhaust every helmet includes a premium

every helmet includes a premium carry bag to protect it during transport

so you can deploy them separately once you have them

but no prep or additional coating is needed before bolting on

Hard panel construction with precision-molded lens

Onboard Wideband & Logging: Built-in wideband lambda and 1GB internal logging for accurate data and fast analysis

Comp Cams DUAL SPRING ASSEMBLY Turbo Exhaust every helmet includes a premiumDual Valve Spring: 1. 464" O. D. Outer, . 724" I. D. Inner Dual Valve Springs from COMP Cams are manufactured from Super CleanT wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams