Simmons Off-Road Performance

Simmons Off-Road Performance Welcome to Simmons Off-Road Performance where you are my priority. Each vehicle receives my undivided attention from start to finish.

I can assist with turning your ideas into reality.

2024-25 Duramax owners, it's your time to shine! The process takes a little bit of time, but the end result is added pow...
08/21/2025

2024-25 Duramax owners, it's your time to shine! The process takes a little bit of time, but the end result is added power!

HP Tuners, the home of VCM Suite and the MPVI since 2003. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle.

Good things are happening for the 2020+ Ford Super Duty owners!
08/21/2025

Good things are happening for the 2020+ Ford Super Duty owners!

04/01/2025

If the clutch is slipping on your 15yo truck, don’t ask for more hp. I promise it’s not going to make the slipping go away 🤣

Fixing a china clone,box tuner issue with EFILive and better tuning
04/01/2025

Fixing a china clone,box tuner issue with EFILive and better tuning

Maintenance is the key to longevity for diesels!
04/01/2025

Maintenance is the key to longevity for diesels!

What do you find when a customers truck won’t start? They dropped something when working on it and tried to start not kn...
04/01/2025

What do you find when a customers truck won’t start?

They dropped something when working on it and tried to start not knowing where the item went. Unlucky enough to damage the crankshaft sensor and shear off all of the reluctor teeth.

10/26/2024

2023-24 Powerstroke tuning with EZ Lynk is now available.

Send a message to learn more

CP4 out…..DCR in for the win! &SDiesel
09/27/2024

CP4 out…..DCR in for the win!

&SDiesel

We even make the big boys happier with some modifications.
07/29/2024

We even make the big boys happier with some modifications.

Cummins with some added power
07/29/2024

Cummins with some added power

2022 Ford F250 with a little more breathing room and a swap to complement the power.
07/29/2024

2022 Ford F250 with a little more breathing room and a swap to complement the power.

Address

106 Whippoorwill Drive
Caledonia, MS
39740

Opening Hours

Monday 7am - 5pm

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