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Punching out the cats ?

774 views 7 replies 5 participants last post by  Drnaline 
#1 ·
how do i go about doing that ? im not worried about emissions becuase maine doesnt do emmision tests. also my muffler has a hole in it , so i was hoping that punching out the cats and putting a new and better muffler on there id get better mpg , sound and power. what muffler would you guys reccomend ? needs to be something cheap. thanks
 
#3 ·
replace them with a pipe the open space will cuase the gas to expand and take power. do more reseach about thermal expansion first plus it sounds kinda goofy
 
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