MM3 Tune Files (2019-2021 Cummins 6.7L)
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 after 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 SOTF Harness fits all 2015–2019 Powerstroke 6.7L trucks. Compatible with SCT SOTF systems. Rugged, plug-and-play design built for diesel conditions.
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
Enhance your Cummins 6.7L with DIESELR MM3 Tune Files. Choose between Single Tune or 5 Tunes (SOTF) for improved power, efficiency, and drivability.
Motor Vehicle Engine Parts
No reviews yet. Be the first to leave one.