Re: Hummer Exhaust
I may be wrong about this, and please correct me if I am, but I dont think there is a "test pipe" or cat eliminating pipe sold for the H2. I think it is just gut the cats or cut them out and put in a piece of exhaust pipe.
As for what to do oce the cats are out and the computers goes hey wtf????
There is a O2 sensor replacement that causes the computer to not see the lack of the cat. For the life of me right now I can remember exactly what it is called....
Having a senior moment
Hope this helps
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'03 H2 (name: Big Gulp)
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