6.6L LMM (2007.5-2010) Duramax

HSP PCV Reroute Add-On Kit HSP's PCV Reroute Add-On Kit is a great complement to our VGT intake mouthpiece. This system helps eliminate damaging crankcase pressure by rerouting it through two 5/8" high-grade rubber hoses. Excessive crankcase pressure can harm seals and rob your...

HSP Billet Valve Covers for 2004.5-2010 Chevrolet / GMC Duramax Trucks The 046-HSP or HSP Billet Valve Covers are designed for the 2004.5-2010 Chevrolet and GMC Duramax-equipped trucks. These valve covers are perfect for both performance and street-driven trucks. If you want to enhance...

The HSP LLY, LBZ, and LMM Duramax PCV reroute kit replaces the restrictive factory crankcase ventilation hoses to improve airflow and eliminate oil vapor entering the turbocharger. Designed specifically for 2004.5-2010 Duramax diesel engines, this kit helps reduce oil residue, protect turbo components, and...

The 046-1-HSP or 2001-2016 Chevrolet and GMC Billet Valve Covers Crank Case Ventilation Kit is something that we recommend for all of our Billet Valve cover kits. What is the Billet Valve Covers Crank Case Ventilation Kit? The Billet Valve Covers Crank Case Ventilation...