mesterious

iTrader: (3)

Just wondering what people think is better in there opinion.

CodeRed2000SS

my vote would be Magnaflow though

nemss1

i like the LM better because its a lighter, more simple setup. but as far as sound goes, gmmg sounds better and more people like the gmmg sound over the LM sound

juniorz28

iTrader: (4)

Loudmouth.....its about 500 dollars cheaper and it sounds good!!!!

TKTMAGNT

iTrader: (2)

I say the GMMG hands down. yes it is almost twice the price but the quality of the system is great and i love the sound. i also love the fact that with a little work the Gmmg will polish up nicely. the slp unit is cheap and sounds like crap and has tons of interior resonance especially if you have LT's and ory. I have had the Gmmg on several of my cars and no complaints... (well the wife has a few for spending so much) and the staff at Gmmg have always been happy to help you (Angel was who i delt with) If you have your eyes set on the slp unit you may want to check out texas speeds rumbler set up, it is basically the same thing and cheaper

www.ls1sounds.com

plum krazy

iTrader: (4)

if money allows go with the gmmg

nemss1

LM starts to get raspy and has alot of drone in the upper rpm band. like the LM idle tho

Mumbles

iTrader: (5)

I've heard both systems and they are equally loud at WOT, but each has its own unique sound. Loudmouth is louder at startup and idle, whereas the GMMG is more of a tuned sound. Nice, but quieter. But $800.00 for catback exhaust is too much to pay in my opinion. Especially since both are Stainless Steel. I've had SLP's Loudmouth since 2004 and love it, but that may change. As soon as we finish my buddy's header, ory, catback install on his 98 Z28, its my turn. I'm installing LT's with a catted Y-pipe in an attempt to cut down on some drone. I'm hoping it isn't as obnoxious as I've heard it can be. I guess we'll see...

Detoxx03

iTrader: (14)

Borlamouth

nemss1

true, OP you have more options than just the LM. borlamouth as detoxx stated, also dynomouth and LM2 sytems

Detoxx03

iTrader: (14)

He can even check out my videos on fquick, a lot better than ls1sounds!

quiet_storm98

iTrader: (48)

i haven't heard gmmg in person but i have heard loudmouth and i can tell you they definately call it loudmouth for a reason. To me it is way to loud and raspy especially once you add headers and dont even think about adding a cam, it will be unbearable.

SSmokin99

iTrader: (7)

I have the GMMG and with stock manifolds I thought it sounded great. I have LT's and a ORY with the GMMG now and damn its F*CKIN LOUD! I actually like it (even the rasp).

lemons12

iTrader: (71)

i hate every time you post up..

Michael02hawk

iTrader: (26)

When the SLP loudmouth was installed on my ride, it lasted all of 1 week before I parked the car, ripped it out and tossed it directly into the trash can.

Then the GMMG arrived, was installed and I never looked back for a second.

Twotonefreak

iTrader: (11)

There is no comparison between the two. GMMG is a much better, more refined sound than the Loudmouth. The SLP is loud, that's all.

TXZ28LS1

iTrader: (5)

ive had LM on my old 00 Z'. it sounded good when i had stock manifolds and a lid. then i did longtubes and ory and that **** was ****** loooooud!!! but i love the sound of loudmouth a WOT...:devi

i have a magnaflow now..sounds good but a bit quiet still...

sway99bird

iTrader: (22)

Lm1...

matt3383

iTrader: (3)

Had a LM1 and changed it out for a lot of mufflers. IMO buy some sweet thunders and build your own setup.

JScamaro

iTrader: (6)

I haven't seen many setups with a cam and gmmg. Once I added my cam it made it LOUD. The guys at LMR were surprised it was so loud for having a full exhaust with cats.