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.
Bostech GM 6.6L Duramax L5D Fuel Contamination Kit 2017-2020 - DEK016619
Bostech's fuel system contamination kits has all the components necessary to replace your fuel system due to injection pump failure. Injection pump failures can be caused by Diesel...