Vehicles GM Pre-Duramax
Subpage-banner

GM Pre-Duramax


Parleys Diesel Performance carries many GMC/Chevy 6.2L & 6.5L Pre-Duramax Diesel Performance Parts. We offer quality upgrades for your GM Diesel diesel truck from the best brands in the business, brands that give you more horsepower, more torque, and more fuel economy. To see parts specifically for your 6.2L or 6.5L diesel, choose your engine displacement.

Chevy/GMC 6.5L Diesel Performance Upgrades

  • Chevy/GMC 6.5L Diesel Performance Exhaust Systems & Components
  • Chevy/GMC 6.5L Diesel Exhaust Stacks
  • Chevy/GMC 6.5L Diesel Water-Methanol Injection Kits
  • Chevy/GMC 6.5L Diesel Turbo Upgrades
  • Chevy/GMC 6.5L Diesel Gauges & Pillar Pods
  • Chevy/GMC 6.5L Diesel Lift Pumps & Fuel Preporators
  • Chevy/GMC 6.5L Diesel Differential Covers
  • Chevy/GMC 6.5L Diesel Truck Accessories

Chevy/GMC 6.2L Diesel Performance Upgrades

  • Chevy/GMC 6.2L Diesel Performance Exhaust Systems & Components
  • Chevy/GMC 6.2L Diesel Exhaust Stacks
  • Chevy/GMC 6.2L Diesel Water-Methanol Injection Kits
  • Chevy/GMC 6.2L Diesel Turbo Upgrades
  • Chevy/GMC 6.2L Diesel Gauges & Pillar Pods
  • Chevy/GMC 6.2L Diesel Head Studs
  • Chevy/GMC 6.2L Diesel Differential Covers
  • Chevy/GMC 6.2L Diesel Truck Accessories