JUSTA6

which is louder the slp loudmouth1 or the slp loudmouth 2

jmstang66

loudmouth 1s...pretty much just staright pipes..lm2's have more insulation and are a bit quieter

mrtstang

The LM 1's are just resonators (no muffler) and the LM 2's are an actual straight through style muffler.

The LM 1's are significantly louder.

JUSTA6

thanks just trying to decide which ones to put on the car and didnt know what was louder

mrtstang

IMO if you're running a catted mid pipe i'd do the LM 1's, but if it's a o/r mid pipe i'd do the LM 2's.

pcs

+1
the lm1 looks like a gutted muffler and if you run that with an o/r mid pipe it will be very loud, unless that is your goal? my friend has slp lt o/r x pipe and lm1 on an 06 gto and it is too loud! not fun to drive around to much. i would go with lm2 regardless. you u want louder you can then just get the lm1 mufflers and just bolt in place of the lm2. but i think the lm2 will be loud enough, that is what i have on my gt stang with an o/r x pipe and lt header. sounds good but only b/c of the the engine that has cams that lope IMO.

01GTpony

+1
i have loudmouth 2s with o/r x and the sound is just perfect. not too loud at cruising but when you want to be noticed the sound is right there

antiv6

even with a catted x slp loudmouth are raspy, id say get the lm2s if you want tone unless you plan on running the stock midpipe

JUSTA6

to tell you the truth its going on a v6(i know you dont wanna hear that) will be getting a set of 1 0ff kooks custom longtubes on it and maybe a set of cats