Diesel Freak CAT Adjustable Power Harness

6nz with the adjustable dial

Works awesome seen about 3/4 of mpg increase hauling same loads on same roads not adjusting driving habits and noticeable about of power gain pulling hills

C12 2KS DIESEL FREAKS HARNESS

I installed it in 5 minutes. Thanks to the instructions. I do see black smoke which means more fuel isn being thrown in early, but I do feel the difference while im underload. I used to bog out and now if I hit the perfect spot in the pedal the truck starts building boost a lot quicker. Ive got it on setting 3. Works as advertised thanks diesel freaks. Only 4 stars cause the knob doesn't really tell you where the setting is, but overall its a great add on to my truck after I figured it out, and called yall.

Diesel Freak CAT Adjustable Power Harness