Not sure which 2008 Hummer H2 Throttle Body Spacers are right for you? We have over 1486 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"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." —George Y from Angleton, TX bought an aFe Silver Bullet Throttle Body Spacers for a 2008 Hummer H2.