This Ford Mustang has been outfitted with a Cummins diesel engine and if you’re a traditional muscle car enthusiast, this could be your worst nightmare. If, on the other hand, you love unusual engine swaps, it might be right up your alley.

The car is owned by YouTuber Westen Champlin and would have originally left the factory with either a four-cylinder, a six-cylinder, or a V8. Clearly eager to make a Mustang unlike any other, the car is now rocking a massive Cummins engine.

We have no idea how much power the diesel engine is pumping out, but slotting it into the Mustang doesn’t appear to have been easy. In fact, the massive powertrain barely fits in the engine bay and installing it required some serious work. In addition, the car’s wiring had to be overhauled to make the engine functional.

Making the unique Mustang all the more intriguing is the fact that the diesel Cummins engine is sporting a big turbocharger and an exhaust that exits directly out of the engine bay.

Of course, there’s no way for the car’s standard hood to be re-attached, but the YouTuber has managed to affix the front bumper and fascia of a Mustang Shelby GT500, making it look more like a proper car (well, without a hood anyway) and not simply a weird engine swap.