Not sure which 2008 Hummer H3 In-Line Modules are right for you? We have over 1502 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:
"My new Hummer H3 is actually the second vehicle I've owned with a Jet Performance Chip installed on it. I highly recommend them to improve the overall performance of any vehicle. Besides doing exactly what they claim they'll do, they do it reliably and they're easy to install, even for the mechanically challenged like myself.
The Hummer H3 is known for not being a speed demon, and with the chip installed, it's still not a hot rod, but it's much more drivable and feels way less sluggish than it did without it." —John R from Levelland, TX bought a Jet Performance Module for a 2008 Hummer H3, 3.7L 5-cyl. engine.
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