Reviewed By Eric H (East Wenatchee, WA) Reviewed for a 2003 Hummer H2 —12/21/2013 11:40 AM
Hardly any noise heard with the stock intake.
Reviewed By Lisa C (Lyons, NY) Reviewed for a 2003 Hummer H2 —12/1/2010 8:06 AM
Took less than 5 mins to install, very easy and no fuss! It doesn't make that high pitch whistle sound like the other spacers on the market which is good. I feel more power mid range but not sure about gas consumption yet as its only been installed for a week. Overall its a good buy and a nice upgrade for my H3's 3.7L I5 engine.
Reviewed By Erick M. D (Perkasie, PA) Reviewed for a 2003 Hummer H2 —9/2/2009 1:52 PM
I loved this product though during the week I had it then gave me a engine code on my '03 Hummer H2. Gm dealership said this is not going to go away unless you put the oem mass air flow sensor back in b/c it has a small grate like lookin grill that prevents this code that the afterrmarket one does not.