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Enhance your Duramax L5P 6.6L with DIESELR MPVI4 Tune Files. Choose between Single Tune or SOTF 5 Tunes for improved power, efficiency, and drivability.
Custom fitments
Tell us about your platform, performance goals, and timeline. We’ll map the parts, confirm availability, and send back a detailed quote with next steps.
Custom fitment brief
Outline your vehicle, performance targets, and timeline. The build desk will confirm availability, pricing, and next steps in writing.
Dieselr aluminized 4" or 5" turbo back single for 2007–2009 Ram 2500/3500 6.7L Cummins—strong fitment, smoother flow, and long-lasting reliability.
Dieselr aluminized 4" Cat & DPF/SCR race pipe for 2013–2018 Ram 6.7L Cummins—smooth fit, strong flow, and durable aluminized steel construction.
Dieselr 3" aluminized Cat & DPF race pipes for 2019–2024 Ram 1500 3.0L EcoDiesel—precise fit, steady flow, and corrosion-resistant strength.