can anyone tell me the difference in loudness running the LM1's with the stock h-pipe over running them with an aftermarket h-pipe...if i want it alittle less loud keep the stock h-pipe right?

 

ha ha h a

 

Done this lol, its pretty damn loud with the stock H-pipe without cats its rediculously loud which if you like that is cool. I think my car was quiter when it didnt have the Loudmouth on it i swear.

 

Your question has been answered but I would like to add that if you want loud LM1 is it but they sound bad (not good) at high rpms when you shift. I suggest you get LM2 or what I have powerflo muffs. https://mustangboards.com/mustang/pi...to/381/cat/508

 

i have had the loudmouth 1 for 2 years and it is rediculously loud no matter what setup ive had, stock and slp catted x pipe. i put sound deadening foam in my trunk under the liner to reduce the noise in the car because its that loud. it scares the hell out of everyone around you and makes great power though.

 

i have LM1 w/ BBK X and it sounds good. With an H pipe the sound is very different then with an X. An H sounds like the older stangs, very deep, not too loud. An X is more throaty sounding. I say go with an after market X, there wont be all that much different in noise with stock H, aftermarket H, or X. If your concerned about the noise go with LM2's.

 

I've never heard of the loudmouth catback......

 

its on AMs web site http://www.americanmuscle.com/slpexhaust.html

 

I guess everyone missed the sarcasm.......

 

hahah thats to funny but your kinda right it sound good when you give it some gas

 

ha ha

 

a lol is a give away for sarcasm.....