Oct 2, 2026 | Diesel Performance Parts, Diesel Tuning
Many people think custom diesel tuning is all about chasing big horsepower numbers. While it might seem like more horsepower means better performance, that’s not always true. Good tuning looks at your engine’s condition, its parts, how much it can handle, and...
Oct 2, 2026 | Diesel Performance Parts, Diesel Tuning, ECM Tuning
Driving a big, powerful semi truck means aiming for the best possible performance and results. To get there, you need more horsepower. If it were simple, you’d just add a certain number and voila MORE POWER. Unfortunately, that’s not how it works. The horsepower you...
May 21, 2026 | Diesel Performance Parts, Diesel Tuning, ECM Tuning
Mario High Performance Diesel (MHPD) specializes in semi truck engine tuning. We deliver the latest innovations and extensive industry knowledge to improve your engine efficiency in a timely, professional manner. Understanding how to read symptoms, use...