DIESELR Commander Tune Files (2020-2023 Duramax L5P)
Motor Vehicle Engine Parts
Join the Bad Guy Motors email list for product drops, garage inspo, and VIP invites. We'll email a one-time 5% off code as soon as you subscribe.
One-time 5% welcome code
Good on any product or service invoice.
Early access
Be first to hear about limited builds, gear, and events.
Direct inbox
Need help? Reply to any email and the crew will jump in fast.
Prefer texting? Call 403-525-0432 or email support@badguymotors.com.
Dieselr 4" aluminized turbo back single for 2018–2019 Ford 3.0L Powerstroke — better flow, clean fit, and strong steel durability.
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.
Motor Vehicle Engine Parts
Motor Vehicle Engine Parts
DIESELR Passenger Side Up-Pipe for Duramax 6.6L improves reliability and exhaust flow. Built from 304 stainless. Direct fit for 2001–2016 GM trucks.