Reviewed By Ryan P (SPOFFORD, NH) Reviewed for a 2005 GMC Sierra —12/5/2014 3:20 PM
I definitely notice a power increase!
Reviewed By patrick c (WAXAHACHIE, TX) Reviewed for a 2005 GMC Sierra —10/17/2014 7:52 AM
I am a huge fan of K&N, I have had them in every vehichle I have owned. I do not use my '05 GMC Sierra for performance, but was looking to get better gas mileage. In this area I am a little disappointed because I did not get what I expected in fuel mileage gains, but it did help my horsepower quite a bit.