Unlock more power from your 2020–2021 L5P Duramax with emissions-safe tuners, high-flow cold air intakes, and turbo-back exhaust kits. This category features L5P performance upgrades designed for newer GM HD trucks, including DPF-friendly exhaust systems, throttle sensitivity boosters, and SOTF-compatible tuning modules. Ideal for Silverado and Sierra 2500/3500 models equipped with the 10-speed Allison transmission.
OEM AC Delco Engine Block Heater Intermediate Cable At The Bumper 2020+ L5P
OEM AC Delco Engine Block Heater Intermediate Cable At The Bumper 2020+ L5P
Merchant Auto ARP Exhaust Manifold Up Pipe Bolts 10232 For 01-22 2500HD, 3500, Silverado, Sierra with 6.6L Duramax
BenefitsReplaces Rusty OEM BoltsDirect ReplacementStronger Than OEM BoltsFeaturesBlack Oxide FinishARP QualityHex Head For Durability...