LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Loudmouth question

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Old Jun 18, 2006 | 09:16 AM
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Default Loudmouth question

Does the resonator make the system louder or quieter?Has anyone ever ran the exhaust with and without it?
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Old Jun 18, 2006 | 09:21 AM
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The LM1 system has the resonator which is nothing but a 4" hollow pipe. It supposedly mellows it out some and on an LS1 car with the cats still in place, it sounds SWEET! On an LT1 car with no cats it sounds like CRAP. Trust me, Ive got both.
The LMII has the same 4" pipe, but it has some baffling material in it. I havent used one of those yet, but Im going to! Thats the first thing Im gonna try to quiet this LT1 down!
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Old Jun 18, 2006 | 01:25 PM
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Originally Posted by RichardZ SS
It supposedly mellows it out some and on an LS1 car with the cats still in place, it sounds SWEET! On an LT1 car with no cats it sounds like CRAP. Trust me, Ive got both.
On an LT1 car w/o cats a LM1 sounds ****** awesome, unless you have headers, then there tends to be a rasp problem.
I Love my LM1, and LT1's sound better than LS1's, because they have a deeper, harder tone because the motor weighs 100 pounds more, and the firing order is different.
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Old Jun 18, 2006 | 01:44 PM
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I personally had the loudmouth + !cat, stock manifolds on my 94 z28. Way too loud, I was forced to buy the dynotech bullet muffler to help a little. In the end it still sounded like ****.
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Old Jun 18, 2006 | 02:15 PM
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Originally Posted by burnzilla
On an LT1 car w/o cats a LM1 sounds ****** awesome, unless you have headers, then there tends to be a rasp problem.
I Love my LM1, and LT1's sound better than LS1's, because they have a deeper, harder tone because the motor weighs 100 pounds more, and the firing order is different.
LOL there's a LOT more difference between an LS1 and an LT1 besides 100 lbs and the firing order. Just for starters, the LT1 block is IRON and the LS1 block is ALUMINUM and thats just for starters!
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Old Jun 18, 2006 | 09:41 PM
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Originally Posted by Bawls
I personally had the loudmouth + !cat, stock manifolds on my 94 z28. Way too loud, I was forced to buy the dynotech bullet muffler to help a little. In the end it still sounded like ****.
why delete the cats and buy the SLP LM system (basically straight pipes) if you didn't want it to sound obnoxiously loud?
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Old Jun 18, 2006 | 10:31 PM
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Does anyone really expect essentially open pipe all the way to the back to sound anything but in your face loud? LM1 Sounds great IMO. At any rate, I doubt that removing the Resonator would do a whole lot. Like they said, just a bellow. I just really enjoy it for the random ricer pipe that gets thrown. Makes them spill their pimpjuice.
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Old Jun 19, 2006 | 06:02 AM
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That exhaust is loud no matter what....
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Old Jun 19, 2006 | 02:42 PM
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Originally Posted by sdm1234
why delete the cats and buy the SLP LM system (basically straight pipes) if you didn't want it to sound obnoxiously loud?

I was going off a recommendation from some cz28 members a long time ago.
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Old Jun 19, 2006 | 02:47 PM
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There is a guy at the track with LM and it doenst sound to great. Its really really raspy and obnoxious. I think the guy has done !cat though.
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