Re: Rotrex supercharger kit for Hummer H3, Canyon or Colorado
I did not do it myself. Wheel to Wheel did the installation, and a buddy of mine took it off. I don't think it is that difficult to install the kit. They charge 6 hours for the installation. Some of that is done, as the lines are all fit and partly assembled. This kit was installed on my 07 which had the 3.7L engine.
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