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zd30 3 inch exhaust sound

18K views 29 replies 18 participants last post by  rjhug1  
another scotts rods system here. currently no cat and a removeable muffler. will be taking it back shortly and having the cat installed and muffler removed.

3" no muffler is an acquired sound thats for sure, but i like it. sounds like a tractor on idle though. hopefully once i have the cat installed it will give me a little more back pressure and lessen the tractor idle.
 
Must admit, after changing back to std exhaust, I don't think I would be bothered doing it again on that motor. Power gain is stuff all and would only help if towing or driving constantly up and through hills.
really!!!?????!!!!

are you running full nads? exhaust after full nads has made a drastic improvement on and off road.