H3 exhaust resonator!
#31
The Billy Boat and most aftermarket systems replace the resonator with straight pipe. The picture that the guy above is thinking of removing is the catalytic converter
I just put on the Billy Boat performance system. It is very quiet, no drone, and just gives the Hummer a little rumble sound.
I just put on the Billy Boat performance system. It is very quiet, no drone, and just gives the Hummer a little rumble sound.
#32
Resonator delete
I did it on an Alpha and heard nothing different with regards to sound, no codes either, not really worth it. I did a cat back GM performance exhaust last year and that has a nice sound but not to loud. Actually getting better sounding the longer I have it on.
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