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Old 10-20-2009, 02:09 PM   #1
JonJuice
 
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does the LS3 sound different than the L99?

I'm just curious as to how they sound with aftermarket exhaust...
What have you guys got ?
same sound ?
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Old 10-20-2009, 02:13 PM   #2
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good question, let me know what you find out! all i know is my LS3 is beastly paired with the new exhaust
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Old 10-20-2009, 02:15 PM   #3
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I will let you know.
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Old 10-20-2009, 02:25 PM   #4
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Supposedly it sounds different when its changing over to AFM? I'm not sure, I've never ridden in an L99 car.
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Old 10-20-2009, 02:27 PM   #5
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Yeah, But I'm getting rid of the AFM as soon as i buy it. Besides that, Do the motors sound different?

Last edited by JonJuice; 10-20-2009 at 02:38 PM. Reason: spelling fail
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Old 10-20-2009, 03:16 PM   #6
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Quote:
Originally Posted by UCI CamaroFan View Post
Supposedly it sounds different when its changing over to AFM? I'm not sure, I've never ridden in an L99 car.
Have you ever met Paul Teutul Sr.?
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Old 10-20-2009, 04:00 PM   #7
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Curious to the OP's question as well. Someone should start a compilation thread comparing the LS3 to the LS99 on both the stock exhaust note as well as AFM. Any takers?
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Old 10-20-2009, 04:04 PM   #8
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Yes, it does because of the resonator on the L99. The resonator is needed so that it is hard to tell the difference between V8/V4 modes. The trade-off is, the L99 sounds a little tamer than the LS3, but not by much.
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Old 10-20-2009, 04:08 PM   #9
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LS3 has a different exhaust.
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Old 10-20-2009, 05:37 PM   #10
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They sound different for several reasons. The L99 exhaust is different in a number of ways - the biggestbeing the massive resonator under the centre of the car. Don't know what goes on in there. Obviously sounds different when AFM is kicking on/off. But I understand the cam and timing is different b/c of the auto tranny, AFM and remote start all require things to run a little smoother. It's more technical than that but that's a high-level explanation.
We'll leave out the discussions about auto vs. manual - but all I know is the engine sound of the auto when shifting just doesn't turn my crank. Then again with my diverters wide open I can't hear myself think so maybe it's all in my head
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Old 10-20-2009, 05:52 PM   #11
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I know my a4 c6 ls2 is MUCH louder than the wifes car L99. We will be taking that res. Out soon. We have Borla on both cars.
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Old 10-20-2009, 06:03 PM   #12
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Well i'll be getting a tune and aftermarket exhaust right away for sure. I heard a straight-piped magnacharge camaro ss and damn was it loud!! I just dont know if manual is the way to go.
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Old 10-21-2009, 09:08 AM   #13
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Quote:
Originally Posted by BigMatt View Post
LS3 has a different exhaust.
WELLL.... Aftermarket is what im doing right away...
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Old 10-21-2009, 04:27 PM   #14
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I've driven an L99 and own a LS3, the LS3 is a louder and sounds better. When I'm driving down the road, heads are already turned before they see me. I especially like to hear the exhaust sound when I'm changing gears.
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