“EngineMaxx will be the first thing I put on [my new truck].”

When I put the EngineMaxx on my 1998 Detroit 60 Series 475 HP, I felt the bottom end torque come up, I was pulling hills better, and I was using less fuel. My mileage went from 5.25 to right around 6.0 mpg average. Read more…

“[Revelation] has increased our torque, power and fuel mileage”

Revelation is a Godsend! We have a 2006 Cummins ISX 500, it has increased our torque, power and fuel mileage. Our mileage is up .5 to .7 mpg and when we go through the mountains, we are no longer dropping 4 or 5 gears, it is 1, maybe 2 at the max. It is a completely different truck now!
Tom & Sharon Bridges
Sedalia, MO

“I have gone from 5.5 mpg to 7.2 mpg.”

I had the EngineMaxx and Revelation installed and it has turned my 2005 Cat Acert into a completely different truck. I have had to learn how to drive it all over again. It sounds completely different and shifts completely different. I have gone from 5.5 mpg to 7.2 mpg. People don’t believe me when I tell them this until I let them see it on my computer. I love the extra response, power and most of all the extra money that I can send back home to my wife!
Tom Sing a.k.a. “Artist”
Jacksonville, FL

“[EngineMaxx] has done exactly what they said it would.”

If a product does what the company says it will do, then I will be very satisfied. With EngineMaxx that was the case. I run a 2004 Cat C15 475 HP (bridge motor). I run all 48 states, and before I put on the EngineMaxx I was averaging 4.8 - 5.2 mpg. I now run between 5.5 - 5.9 mpg. It has done exactly what they said it would. Thank you guys!
Mike Hastings a.k.a “Dough Boy”
Casteville, MO

“I wouldn’t own a truck that didn’t have [EngineMaxx]”

This is my third truck with EngineMaxx. Every time I get a new truck, the first thing I do to it now is put an EngineMaxx on. In fact, I wouldn’t own a truck that didn’t have one installed. Read more…