Reviewed By mark b (PITTSFIELD, ME) Reviewed for a 2006 Hummer H3 —5/21/2016 9:06 AM
More lower end torque and way less then gm
Reviewed By Cole H (Chicago, IL) Reviewed for a 2007 Hummer H3 —9/2/2015 3:53 AM
It's pretty simple. Rattle trap exhaust is now smooth reving, with zero loss of power after updated dyno. Only issue would be weight, pretty heavy part to add in. One of the ideas behind this Hummer H3 was to reduce weight and all lite weight exhaust just got killed back to stock weight with this installed.