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Muffler size to replace LM1 resonator?

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Old Apr 26, 2011 | 10:15 PM
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Default Muffler size to replace LM1 resonator?

Man I loved my LM1 before headers. Now with LT's Catted-y it sounds pretty gaudy up top. Without weight on the motor it's sounds sweet revving. But in gear sounds like crap.

I want something cleaner sounding and a little quieter. Was thinking Borla XR-1 or LM2. Is there a specific size I need?

What do you guys think sounds better/less obnoxious between the two? (yes I searched)

Thanks
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Old Apr 26, 2011 | 11:00 PM
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Also what's a muffler that would get me back to just sounding like the LM1? I assuming LM2 muffler? Any other that would sound similar? Ive been pouring over you tube vids
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Old Apr 27, 2011 | 12:21 AM
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I bought a Borla XR-1 Racing Muffler and I like it. I'm actually about to change it to Stainless Works 3 1/2 in catback and a new custom y-pipe. The muffler I bought I tried to get the same length as the resonator. I think it's 5 inches in diameter and if it's on a slammed car you have to be careful going up a driveway. I put the muffler right where the resonator was in the exhaust.
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Old Apr 27, 2011 | 12:39 AM
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Here's a picture from the back.

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Old Apr 27, 2011 | 10:14 AM
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What length was it? Did it quiet down at all with the xr-1?
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Old Apr 27, 2011 | 01:57 PM
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I'm not sure what length it was. It was a little bit longer than the resonator. And yes it did quiet it down some.
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Old Apr 27, 2011 | 03:02 PM
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Magnaflow is probaby your best best. Man I wouldnt change my lm1 and lts for anything. Sound mean as fck. Its not clean sounding ill give you that.
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Old Apr 27, 2011 | 03:15 PM
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Yeah, I mean it does sound mean but just too crackly/poppy if that makes sense. But I don't think I like the sounds of magnaflow too much, I want to get back to how the LM1 sounded before long tubes
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Old Apr 27, 2011 | 03:31 PM
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Originally Posted by MEGATRONSS
Yeah, I mean it does sound mean but just too crackly/poppy if that makes sense. But I don't think I like the sounds of magnaflow too much, I want to get back to how the LM1 sounded before long tubes
Ohhh I got ya. Then I would say the LM2 thats alot quieter and deeper.
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Old Apr 27, 2011 | 05:57 PM
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Hmmm LM2 deeper? Have you have it on your ride? I know it's quieter though...
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Old Apr 27, 2011 | 07:47 PM
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Originally Posted by MEGATRONSS
Hmmm LM2 deeper? Have you have it on your ride? I know it's quieter though...
My friend has it on his trans am. It sounds muffled at idle. WOT doesnt pop like my LM1.
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Old Apr 27, 2011 | 09:59 PM
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LM2 with LTs and cats sounds great. I did a lengthy write-up on my Trans Am with the setup. You really cant go wrong. Sounded awesome!
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Old Apr 27, 2011 | 11:17 PM
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Hmmmmmmmmmmmmm I think that's what I'm leaning towards(LM2) ! That or a borla xr-1....Any opinions between the two??
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Old Apr 27, 2011 | 11:19 PM
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Originally Posted by MEGATRONSS
Hmmmmmmmmmmmmm I think that's what I'm leaning towards(LM2) ! That or a borla xr-1....Any opinions between the two??
Yeah keep the lm1 in case you dont like the new muffler. The LM2 and XR1 are just as loud as each other.
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Old Apr 28, 2011 | 09:18 PM
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So I figured out why it sounded like such ****. My egr plate had basically gotten blown off. AND there was a huge leak. Sounds much much better now, I think I'll still change out to a borla though
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