Hardknocks Diesel

05/17/2026

05/01/2026

Another Fleece Performance Engineering cheetah going on a customer's truck. This time its a 2022 chevy L5P! This offers great throttle response & good top end power!

04/21/2026

Huge thanks to Hot Shot's Secret for everything they do for us on the race track and for our customers.
Their products consistently deliver when it matters most!
If you’ve ever had engine, transmission, differential, or cooling system repairs done at Hardknocks Diesel — you’re

The Outlaw Diesel Super Series season is right around the corner, and we’re ready! Hot Shot's Secret is proud to increase our support of ODSS with a three-year title sponsorship and to bring Adrenaline Outlaw R100+ to the series as the official fuel.

We'll see you this week at the first leg of ODSS, Rudy's Spring Truck Jam!

04/17/2026

This customer wanted some added performance and a better sound on his LML. Insert the Stainless Diesel 9blade. This is an upgrade that delivers faster spool, lower EGTs, and the signature whistle of the 5Blade Mafia paired with the 9blade turbine 🤘
We are a proud dealer for stainless diesel! Get ahold of us if you are interested in any of their products!

03/26/2026

Fleece Performance Engineering cheetah upgrade going on a 2018 Cummins!

Replacement turbo designed for quicker spool, increased airflow, and everyday reliability.

03/18/2026

Another good customer set up right!

This 2025 F-450 is ready to haul some livestock, and he chose an S&S Diesel Motorsport DCR pump conversion for one reason—reliability. When you’re hauling livestock, downtime isn’t an option!

03/07/2026

Customer got lucky today!

This 6.7 Cummins came in with a check engine light which was due to a grid heater failure— a very common issue on these trucks. When they fail, the bolt can break off and get pulled into the engine causing major damage.

Thankfully we caught this one before that happened.

If you have a 6.7 Cummins, it’s a good idea to get your truck in and have the grid heater relocated before it becomes a costly problem!