Reviewed By Cameron S (Milledgeville, GA) Reviewed for a 2009 GMC Sierra —2/15/2017 8:21 AM
after installing the throttle body could tell an immediate change in throttle response and power throughout rpm range
Reviewed By John L. B (GAINESVILLE, TX) Reviewed for a 2009 GMC Sierra —9/27/2016 9:13 PM
Dealer cleaned the stock sensor, but codes continued to come and go. I saw in a comment section of one of the Duramax discussions that the problem might be more frequent in EFI treated engines. I therefore purchased this, installed it and 4 weeks later have not had a code show. The engine is a bit peppier.
Reviewed By Juan H (DALLAS, TX) Reviewed for a 2006 GMC Sierra —1/15/2014 8:17 PM
Installation was fairly simple although if you have DBW you may need to use a longer hose for the coolant line that runs underneath throttle body. Saw a good increase in mpg did see a good difference in pick up midrange and was a good addition with the k&n intake. Well worth the $85. It does whistle but i only heard it when the radio was down.