Fits: 2004.5 thru 2010 Chevy Silverado/GMC Sierra 2500/3500 HD LB7/LLY/LBZ/LMM
Replaces stock or shimmed pressure relief valve. This valve completely blocks the pressure relief port (effectively deadheading the fuel rail). Eliminates low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment) that are caused by insufficient PRV spring pressure. Helps maintain fuel rail pressure during full throttle driving.
- 50 State Legal CARB EO# D-701-12
Straight forward install and great piece of mind. I feel more confident that I’m not bypassing fuel.
Dmax Store offers this peace of mind for a low cost! Every Duramax build you read about or tuner you talk too recommends a race fuel valve when starting your own Duramax upgrades. Install was fast, easy, and can be done in your driveway.