Loudmouth vs Magnaflow

[Will]

Hey guys i am trying to decide between the 2.5 SLP Loudmouth or the 3 in Magnaflow system. From what i have heard the Loudmouth is the loudest but i wanna know horsepower numbers. Which one produces the most power? Also is there a 3 inch Loudmouth system available. My mods are slp intake, tb spacer, pacesetter headers, high flow cat. I am also going to be getting a cam and that will do it for my mods. So which system should i get?

[Gauvin007]

I have the Magnaflow Cat back. It is awesome. I def felt a good hp gain. I would go with Magnaflow. Good luck

[camarov62003]

i would have to say...............SLP SLP SLP SLP SLP SLP SLP SLP SLP [img]graemlins/banana.gif[/img] [img]graemlins/banana.gif[/img]

[Will]

Does anyone have any horsepower numbers from the 2 different systems? Does anyone have the 3 inch loudmouth for the ls1 on your v6?

[BLLDOGG]

i would get the 3" loudmouth from your choices

[njp98]

I got the magnaflow, I definately noticed an increase. It also sounds real good, I get alot compliments from pretty much every guy who rides in my car, or hears it.

[Timbo1969]

Magnaflow.....it just flows better

[OneQuickV6]

Neither. TSP RUMBLER:) And no, there is no way the Magnaflow comes ANYWHERE near out-flowing the Loudmouth or Rumbler. The advantage the Rumbler gives you over the LM is that we put a bullet muffler in the I-pipe instead of a resonator to get rid of alot of the rasp associated with the F-bodies. It is 3" mandrel bent aluminized steel. It is one of the highest flowing catbacks available, period. The LM is its only real competition, and we have it beat on sound:)

[Timbo1969]

It doesn't matter I've got all of them beat on flow..... :D Probably to much flow but I've got'em beat.. ;) The Magnaflow it just flows better was a Joke.. catch phrase...lol Oh well..

[OneQuickV6]

AHH my bad. I'd like to check out your true duals. I've been considering having a set fabbed up for my car. Mine is too dang loud (never thought I'd say that!).

[Timbo1969]

Mine is Extremely Loud.. Mine are 2.5 compression bent pipes 1 on each side with a flanged H-pipe..I didn't figure I'd need mandrel bends with that large of diameter piping. They sound great WOT..

[Ju5t_B3at_Me2005]

onequickv6-

you know i've been real interested in the rumbler. beats the loudmouth in price at least, and i tak your word that it flows the best, you've told me that repeatedly...but soundwise, i heard the LM clip on darkecho's stock car, didnt hear much rasp, it axctually sounded good top end....now i beg you, please give me a clip so i can compare. if you guys really have a better sound than the LM then my confidence in your product is reassured :D thanks

[LARRYfireBIRD33]

The borla adjustable flows better than everything...it acts like a cut-out before the muffler but you can customize how much of the cutout you want. I made a .75" hole for a cutout so most still flows through the muffler at higher RPMs. It sounds mean for a 6.

[OneQuickV6]

Hearing a clip of my car won't do any good, as it sounds much different than the average V6 car:) WickedSix posted clips of his car recently, as well as another one or two guys with the Rumbler. Maybe someone will chime in with a link here *hint*.

And a cutout doesn't outflow the Rumbler, neither does the Borla plate. I picked up almost 10rwhp going to the Rumbler over an open cutout:)

[Will]

So the loudmouth outflows the magnaflow and the rumbler outflows the loudmouth with less rasp and cheaper pricing. So it sounds like i need to get the rumbler. Is it really the best flowing and the best for horsepower? If it is then i am getting it. Does it souns as good as the others too?