Im looking into buying cat back exhaust. I trying to decide between the slp loud mouth and the mac cat back. Can any one help me decide with reasons like sound level (louder the better : ). )and performance gains, sound quality with mac long tubes and mac prochamber.

 

I've got mac long tubes and I love their sound. They're a great set of headers. I've also got the mac prochamber which gives a real nice low end growl.

Defenitely go with SLP loudmouth for the system though. I'm convinced thats probably the loudest system for a mustang that you can get. They're nuts. I love their tone, real nice raw ripping sound, and they scream at high rpms.

Horsepower gain with headers and a system will be around.. 10-15 ish. Maybe more maybe less.

 

Ya i think im going to do Mac long tubes with Prochamber h and SLP lm1s. IT will DEEP LOUD.

 

Do it up man! Post some videos of it when you do!

 

check my cardomain ive got clips. Loud as hell but sounds mean

 

FR500 exhaust and an offroad x pipe