We create custom programming for diesel engines.
Not your average ECM tunes. High-performance diesel engines that boost HP and clear error codes, all with top-notch customer support.
Start Your Free Quote
Start your Free Quote

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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Choose your engine brand to get started

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.

(780) 475-2734

Start your free quote

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

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