I bought the full delete kit for my 2021 F250 6.7 after battling regen problems for 6 months straight. I run a landscape business and can’t afford downtime. I had my mechanic do the install, and even he said it was one of the cleanest kits he’s worked with. Everything fit perfectly, no fighting with pipes or odd brackets. The GDP Commander flashed without a hiccup. They sent me the right tune file fast, and it came with multiple power levels which was a nice bonus. I went with the tow tune and it made a world of difference. The truck feels like it’s breathing again. My fuel mileage jumped from 13 to about 18.5 combined. I drive in mixed conditions—city, highway, gravel roads—and it’s been consistently smoother and stronger. What really sealed the deal for me is their customer service. I had one question about exhaust routing, and they responded in under 10 minutes with a picture and detailed answer. Solid product. Solid company.

I bought my 2021 F250 brand new, and by 20,000 miles, I was already tired of the regen cycle. I work on job sites and idle a lot during the day, which made the DPF clog faster. The final straw was getting a derate warning while trying to leave a muddy lot. I decided to delete. The delta kit came wellpackaged, and everything about the install felt highquality. I’m not a fullblown diesel tech, but I do my own maintenance and this wasn’t too hard with basic tools. Flashing the tune was straightforward, and now the truck runs clean, pulls stronger, and doesn’t randomly drop power. I also gained about 4.5 MPG, which was a nice bonus. Feels like the truck is finally how it should’ve come from the factory.

Truck finally feels like it can breathe. No more regen, smoother idle, and stronger towing response.

The truck just feels smoother in every way—less lag, better throttle, and lower EGTs even under load.

Idle used to be a little rough. Now it’s buttery smooth. Plus, I’m filling up way less often.