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which cat back is better

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Old 07-11-2007, 09:50 AM
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which cat back is better the slp loudmouth 1 or the slp loudmouth 2? which one is louder and which one produces a better sound?
Old 07-11-2007, 10:01 AM
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Better is relative. LM1 is louder. LM2 is less raspy. It also depends what else you have done to the exhaust (headers/ ORY). I have the LM2 on a stock exhaust- sounds good at start-up, good at idle, good outside the car, but IMO it drones too much on the inside of the car ~2.5-3k rpm. esp at part throttle. But it may be perfectly acceptable to someone else. I might try changing the tips to see if that helps. (have the dual/dual tips).

www.ls1sounds.com

this website can help a little in you deciding, but it still doesn't replace listening to them in person
Old 07-11-2007, 10:56 AM
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lm2 has a better / more refined tone on stock manifolds and cats. LM1 sounds good at wot but is dumptruckish otherwise.
Old 07-11-2007, 10:56 AM
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Originally Posted by Adrenaline_SS
LM1 is louder. LM2 is less raspy.


Old 07-11-2007, 11:03 AM
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Get a GMMG.

-Kevin




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