Precise Optimization for Serious Efficiency

The Authority in Diesel Performance

A properly tuned engine can mean the difference between success and failure. Each aspect of your engine is considered when tuning; from rough roads and steep hills to pulling tractor-trailers, MHPD ensures your machines are fine-tuned for every job.

Tune your Engine

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Find a Dealer

Receive customized tuning from world leading custom diesel engine programmers. With an ever-growing network, stretching from Canada to the Caribbean, MHPD will deliver maximum performance from your rig.

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Become a Dealer

When you partner with MHPD, you join an internationally recognized team that provides the tools to grow your business. We provide you with cutting-edge support to train you and your team.

Become a Dealer

Fine-tune Performance from Canada to the USA

For the Road, the Farm, and On-Site

Fleet Tuning

Less maintenance means less downtime! Keep your fleet moving with Mario High Performance Diesel.

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Agriculture Tuning

Ensuring your engines are at their peak performance is vital for when you need them the most.

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Industrial Tuning

Give your heavy industrial equipment the power it needs to dig, mine, and load everything your site requires.

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Dyno Testing and Tuning

Unleash the full power of your diesel engine! Boost performance and efficiency for the toughest tasks and peak productivity.

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Why Choose MHPD?

High-Performance Tune

Fuel-Economy Tune

Custom Tune

Mario High Performance Diesel Racing

Holding a World Speed Record

Meet The Beast. A 4000hp CAT-powered 1988 Peterbilt 379. Built with recycled Caterpillar parts and expertly tuned by MHPD, this truck holds the World Speed Record for NHRDA Semi Hot Rod Class at 120.35 mph.

Watch the Beast in Action