Reviewed By Brett C (ATLANTA, GA) Reviewed for a 2011 Chevy Avalanche —1/18/2015 11:00 AM
The install instructions are poor at best. Many more steps required than listed in guide.
Reviewed By Robert M (MEMPHIS, TN) Reviewed for a 2012 Chevy Avalanche —6/4/2014 9:07 PM
These headers instantly provided more HP and gas mileage. If you are on the fence about purchasing headers, you shouldn't be, these headers are exactly what I was hoping for. I've purchased a cold air intake, gibson dual exhaust and superchips power programmer over the past years. The headers provided the most noticeable HP and MPG gains. Only issue was the lack of detailed instructions when removing exhaust manifolds. Additional tools required, O2 sensor removal required and not mentioned.
Reviewed By Vergel W (FAIRBANKS, AK) Reviewed for a 2016 Dodge Ram —12/5/2016 1:14 PM
It was a difficult installation??, definitely needed a beer after this one. I purchase both the 1 7/8 long tubes and high flow cats y pipe. FTY for 2016 and up make sure to inquire about the y pipe extension if you have a crew cab.. the one I received was 9 inch too short also hanger weren't correctly aligned. I Called kooks and explained the situation, wasn't too difficult to get it corrected. now they should have update the kits but be sure to check to avoid this set back. Free your ride..