Reviewed By Ralph E K (Hagerstown, MD) Reviewed for a 2008 Hummer H3 —6/12/2013 6:53 PM
According to the first trip I made I picked up 4 mpg. Very impressed so far!!!
Reviewed By George Y (Angleton, TX) Reviewed for a 2008 Hummer H2 —2/9/2010 10:59 PM
Received the spacer in a few short days. Well designed and fits to the intake perfectly. No whistling noise heard when running. Power increase wasn't pronounced but that would need a dyno test before-and-after installation for measurement. Spacer is used in combination with cold-air intake and cat-back exhaust. Together made major improvement in acceleration.
Reviewed By Joseph K (HAVRE DE GRACE, MD) Reviewed for a 2015 Chevy Silverado —7/10/2016 10:43 PM
i love the afe cold air untake. was remarkably easy to install. i believe it took half hour stsrt to finish. my truck sounds great with the low growl that it emmits. i havent seen much of gas saving. but doing 55 mph in my 2015 chevy 2500 lifted 4 inches i got 16.3 mpg. which is insanely good compare to the usual 12.5 i normally get.