Not sure which 2008 Hummer H2 Spark Plugs are right for you? We have over 146 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:
"Replaced my stock plugs with the Pulstar plugs along with a set of Accel Ceramic Plug wires. Noticed a slight increase in power and picked up about 1 mpg." —Steven B from Weirton, WV bought a Pulstar Eco-MPG Series Spark Plugs for a 2008 Hummer H2.