Reviewed By jeffrey w (Hixson, TN) Reviewed for a 2001 GMC Sierra —1/27/2011 5:19 PM
I was able to install this in about an hour. I have a lot more power but no improvement in MPG. Overall, a great product.
Reviewed By Kristopher R (CABOT, VT) Reviewed for a 2004 GMC Sierra —11/29/2015 9:57 AM
Installed this on my 04 gmc Sierra 6.0 and notice a great low end tourqe increase and gained 2-3mpg with every thing stock except my superchip tuner. Took me couple minutes to install and very well pleased with the overall purchase.
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.