PRXB ECM By-Pass Kit – C14037 Year Applicable:2003 - 2004 The combination of aesthetics and

The combination of aesthetics and functionality is what we pride ourselves with

This Extreme-Duty Steering Kit comes complete with everything you need to upgrade your 2001-2023 GM factory 2500/3500HD components

Forged Milled Billet Wheel on secondary turbo

0L was engineered to minimize air restriction and flows 40% better than stock

PRXB ECM By-Pass Kit – C14037 Year Applicable:2003 - 2004 The combination of aesthetics andProduct Description If your engine's electronic control module (ECM) has a delay activating your Pacbrake exhaust brake, this kit may be the answer. Pacbrake's ECM By Pass kits reduce the delay in activating the exhaust brake by more than 50%