Reviewed By Robert S (MORRISTOWN, TN) Reviewed for a 2007 Chevy Avalanche —1/29/2018 9:01 PM
Very easy to install. Haven't been able to determine if it makes a difference yet.
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Reviewed By Brian H (Lake Havasu City, AZ) Reviewed for a 2008 Chevy Avalanche —7/25/2014 8:57 AM
Good Fit easy to install, would be nice if they labeled the flow direction. Seems to perform ok for towing tune with Supertuner, No mileage test yet. No whisle noise. I am hoping for some torque gains.