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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.
Downpipe-Back Exhaust for 2001–2007 LB7/LBZ Duramax. Mandrel-bent T409 stainless, off-road use only. Built to last. Backed by Dieselr.
Install the 9th injector plug Powerstroke 6.7L engines need. DIESELR’s 5/16" port plug seals the unused fuel line. Fits 2023–2025 Super Duty models.
Downpipe Back Exhaust for Powerstroke 6.7L (2020–2026). Stainless, mandrel-bent system with TorcTite clamps. Built for torque, EGT drop, and clean fit.