Overkill Diesel Performance

Home//Shop//Tuning

TUNING

Overkill Custom Tuning — unleash maximum power from your diesel.

Loading products...

READY TO UNLEASH YOUR DIESEL?

Custom calibrations and proven parts — built and tested on our own trucks.

Start Your Build Shop Parts

WE KNOW DIESEL. WE LIVE DIESEL.

[email protected]@overkilldieselperformance

Shop

Tuning
Turbos
Fuel Systems
Exhaust
Intakes
Transmissions
Electronics
Engine Parts

Engines

Cummins
Duramax
Powerstroke

Company

Home
Shop
Tuning
About
Contact
Blog

Newsletter

Deals and product drops — straight to your inbox.

No spam. Unsubscribe anytime.

© 2026 Overkill Diesel Performance. All rights reserved.

Privacy Terms Warranty Shipping

🔒 SSL secured · Real people answer every order

We currently accept Venmo · Zelle · Cash App · PayPal — all sales final