Open during COVID-19

Mario High Performance Diesel will remain open and focus our efforts on helping people and services who are providing essential support to the economy and individuals. We will be here to help OTR truckers, garbage removal, essential service vehicles and more.
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Your truck might not run like it used to — but that doesn't mean you have to keep putting up with subpar performance. Our custom ECM tuning will make your truck more powerful and more efficient than the day you got it.

Let us solve your problems. We provide custom programming that saves you money and time.

Mario High Performance Diesel

North America's most-trusted ECM programmers for diesel engine vehicles

"I have had the privilege of working with Mario High Performance Diesel as a business advisor since the beginning. If you are looking for quality service and integrity when it comes to your engines they will not disappoint!"
Trevor McKay
Trevor McKay, Peterbuilt
"The tunes MHPD lays down are top notch. They're so much more than an out-of-the-box tune that competitors use. By far the best MPG and torque you can get."
Scott King, Free Indeed
"I’ve been an owner operator for 20 years. After talking to Mario and listening to his knowledge on what was causing all my problems I had him tune my truck. I am now 8-9 months into trouble-free operating with zero check engine lights and .5 to .75 more MPG US fuel mileage."
Trevor McKay
JOE NINOWSKI
About

Who we are

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What we do

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Mario's Upcoming Races

Ultimate Callout Challenge

Ultimate Callout Challenge

Mario Monette will attend the 2020 Ultimate Callout Challenge with "The Beast" — his CAT-powered 4000hp 1988 Peterbilt 379.

Keystone Diesel Nationals

Keystone Diesel Nationals

This prestigious event has been around for a while. Mario will be there with The Beast. The event will have racing, vendors, kid's power wheels races, truck shows, and MORE! Be sure to mark your calendars and come see all these events have to offer!

SIR Feature Event

SIR Feature Event

Come see the world's fastest NHRDA Semi Hot Rod Class. The Beast will do some exhibition runs and show off its 4000hp. Send Mario a message to arrange a meet before or during the event.

YouTube Burnout

YouTube Burnout

MHPD is launching a YouTube channel! Check it out and follow to see the road to the biggest, baddest, semi burnout ever.

Diesel experts, available everywhere

Ship it or show us. No matter where you are located, we can program your diesel to performance to its highest capacity. All we need is your ECM. Send it in the mail or bring it to us directly. It's really that simple. Questions? Our technicians work in-house and respond within one business day.

See How It Works
More money in your pocket
On average, our services save long-haul truck drivers $15,000 in the first year alone. The initial investment in custom diesel engine programming is just that, an investment. Not only will you save money on fuel, your engine will run more cleanly, more efficiently, and have more power. You'll never worry about error codes again.
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Brought to you by The Beast
Owner of Mario High Performance Diesel, Mario Monette, walks the walk with his Caterpillar-powered Peterbilt 379. Building the truck with recycled Caterpillar parts, the truck is almost strictly a Caterpillar that is C15-based. The turbo is a brand new HX82. Multiple times a year, The Beast competes in world-class competition and kick some serious ass.
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Talk to a tech

There's no better time than right now to start saving money. We're here to answer your questions.

1-855-660-MHPD

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Send an email and get full support right away. We'll have a quote prepared for you within 24 hours.

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