what size cutout do most of you run with slp loudmouth, what size is the pipe?

 

ok i found that the pipes are 3 inch so should i get a 3 inche cutout or a 3.5?

 

Why do you want to add a cutout to your loudmouth? I personally dont think that it will not sound any louder and there probably wont be any noticable performance gain. Loudmouth is strait through pipes and probably one of the best flowing catbacks out there.

 

Exactly....

You don't need a cutout.

 

im having a cutout put behind each header so i can bypass the cats at the track. so 3 or 3.5?

 

then you would need cutouts that fit the ypipe....not the intermediate pipe. the slp y pipe that i ahve is 2.5 inch each side then merges into 3 inch at the intermediate pipe.

 

i forgot all about them needing to go to the y-pipe. wow i feel dumb. thanks lol