what would be the best muffler on a 98 v6 flowmaster 40 or mac

 

well this depends on how loud you want your exhaust. in not as fimilar with V6 stangs, but pretty much any aftermarket muffler you put on your car will perform better than the stocker. so the question really is, is how do you want it to sound??

 

flowmaster 40's, for sure