d3mon

i installed my o/r x-pipe before my cat back and i had that rattle, well thats normal, it doesnt sound pretty with stock cat-back but this is the sound after a installed SLP loud mouth 2 on my car you still can hear the rattle when i let go of the gas after reving to 6k rpms but overall i love the sound

SLP o/r X-pipe with SLP Loud Mouth 2

Sebski

yea that car sounds sick

monkeydude3

oh dang that sounds freakin great

redass02gt

it was explained to me that the rattle is the "echo" (doesn't really sound like an echo to me, just tapping) of your exhaust valves and the x-pipe's shape makes it sound like that. Thing is, I don't understand why some people have it, and some don't. I can usually only hear mine when I'm driving next to another car or I'm next to a high curb or when the rpms are really low and I don't give it enough gas to downshift and raise the rpms and it's almost bogging. once I get above 2000rpms I can't hear anything other than the exhaust anyway.

d3mon

i think depends on the cat back.... but that just what i think

StowesStang

OMG, your car sounds insane, Im diggin the crap out of that!!!! I heard another SLP sound clip on a black GT and it ranked up there with yours!!!!! I was going to go check out some Magnaflows this weekend but maybe I need to research those SLP Loud Mouths a bit more, HOWEVER, I would only drop about $225 (installed) verses how much with SLPs???????

redass02gt

i could be wrong, but I don't think you can find any (brand name) catback system for $225, especially if that includes install.

white04gt

For once... (cough cough puke cough cough) I have to find myself agreeing with this red anused monkey... :P

StowesStang

No, no, no, Im talking strictly mufflers, nothing else. I do not have a full exhaust system on my stang; just o/r x and some Flowmaster mufflers. What Im going to have done for $225. is change out the mufflers!! LOL Im cheap, dont want to let go of the cash, YET!

282GT308LX

Ok im about to set the record straight......my 01 Gt Has super 40 Flows....I bougth shorty bbk tuned headers and an O/R BBK X-pipe....IT sounds TERRIBLE between 2200 and 2800 RPM's.....I then did a product review search and 90% of the people who had them have this problem.....I talked to a buddy of mine who owns a great ford perf. shop, and he told me most o/r X's...especially the BBK sound like that with dual chamber mufflers.....i like my flows, so I sold the BBK and bought a mac prochamber.....It sounds great I get compliments everywhere about how its the cleanest mustang exhaust they have ever heard........i think u have a problem with ur prochamber or an exhaust leak.....mine sounds great.....Its def. a lot quiter then the BBK but its sounds so clean