Collection: 2007-2014 GMC Sierra 3500HD Engine & Performance

Engine and performance parts fitted for the 2007-2014 GMC Sierra 3500HD, covering both 6.0L Vortec gas and 6.6L Duramax LMM and LML diesel trucks. Stock includes cold air intakes from S&B and AFE, EGR delete kits, lift pumps, tuners, and Bosch injectors for single and dual rear wheel configurations.

Will a tuner or delete kit void my powertrain warranty? Yes, emissions-related modifications can void the factory warranty and are sold for off-road or competition use only. Verify local laws before installing delete pipes or EGR components on a street-driven Duramax.

Verified fitment on every listing, no guesswork at checkout.