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.