Top Lists
Top List
Best Cold Air Intakes for the Duramax, Ranked
How to choose a cold air intake for your 6.6L Duramax — open vs enclosed airboxes, oiled vs dry filters, and what actually helps airflow on the LB7, LLY, LBZ, LMM, LML, and L5P. New on Amazon, used/OEM on eBay Motors.
Top ListBest Duramax Fuel System Upgrades, Ranked
The Duramax fuel-system upgrades that keep a diesel fed and reliable — lift pumps, injectors, CP4 protection, filtration, and rails for the LB7, LBZ, LMM, LML, and L5P.
Top ListBest Duramax Performance Upgrades, Ranked
The Duramax performance upgrades that matter most, ranked — tuners, turbos, intakes, and exhaust for real, usable diesel power on the LB7, LBZ, LMM, LML, and L5P.