Collection: FASS Fuel Systems

Diesel Fuel Delivery

Fuel delivery and injection upgrades for Powerstroke, Duramax, Cummins, and EcoDiesel platforms. Calibrated, dyno-proven, and matched to your truck — select your platform and year to see fitment-confirmed options.

Find your platform

Use the platform and year filters to confirm fitment for your Powerstroke, Duramax, Cummins, or EcoDiesel.

FAQ

What device do I need to tune my truck?
EZ Lynk Auto Agent, HP Tuners MPVI4, EFI Live, or MM3, depending on your platform.

Do you offer transmission tuning?
Yes — Dieselr provides TCM tune files alongside ECM calibrations on supported platforms.