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 Bob B (Tacoma, WA) Reviewed for a 2000 Toyota Tundra —1/3/2018 6:11 PM
I ordered these and they arrived well packaged and quickly. I had a shop put these on for me along with some Magna-flow catalytic converters and a Flowmaster cat-back system, so I cant really comment on how hard they are to put in. I do want to say that they did not come with new exhaust gaskets for either end of the headers. I noticed a definite increase in horsepower and engine response, but I replaced the whole exhaust from the block back. Overall I give em 4 stars (a bit expensive)
| Chevy Avalanche 1500 Exhaust Headers |
Chevy Avalanche 1500 LS Exhaust Headers
Chevy Avalanche 2500 Exhaust Headers
| Chevy Avalanche 2500 LS Exhaust Headers |
Chevy Avalanche LS Exhaust Headers
Chevy Avalanche LT Exhaust Headers
| Chevy Avalanche LT1 Exhaust Headers |
Chevy Avalanche LT2 Exhaust Headers
Chevy Avalanche LTZ Exhaust Headers