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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 Turbo Back Exhaust for 1999–2003 7.3L Powerstroke. Built with T409 stainless, 4" downpipe, and TorcTite clamps. Fits F250/F350. Off-road use only.
LMM Duramax Downpipe-Back Exhaust for 2007.5–2010 GM trucks. T409 stainless, mandrel-bent, off-road only. Built tough. From Dieselr.
Get the DIESELR Turbo Back Exhaust Cummins 6.7L kit for 2007.5–2012 Dodge Ram 2500/3500. Strong build, smooth fit, off-road use only.