hey i got the magna flow cat back system and i want it to sound different, can i use a SLP Loudmouth muffler to replace the one from the magna flow cat back system and take off magna flow muffler will it still work? and will you notice or hear any difference?

 

I dont think so. depends on ur catback, but slp mufflers are designed to be one on each side. the magnaflow kit should have ur ypipe coming into a single muffler and 2 pipes coming out fromt hat i believe.