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Old 04-10-2018, 01:12 PM   #1
bub
 
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Swap in a '15 LS3 for stock '10 L99 Exhaust? Results? Direct Fit?

I have a takeoff complete LS3 exhaust from our old '15 1LE that we took off for an NPP at the time.

We just picked up a buy on an L99 equipped 2010 SS.

Questions:

Is there any advantage of swapping out the L99 for LS3 Exhaust? Searching for more sound.

Is it a direct swap, esp. 2015 into 2010?

Want to save the stock L99 system if V4 sound is bad in LS3 system.

Uncut both systems. Cat all the way back.

I checked and the part numbers differ year to year, but I know the tips changed somewhere along the years, because the '15 tips are much nicer than the '10's. Hopefully the rest of the fit (including tip position in rear diffuser) is same.

Also looks like the resonator on the L99 was canned somewhere near mid-production of the Gen 5...
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Last edited by bub; 04-10-2018 at 01:56 PM.
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Old 04-10-2018, 04:39 PM   #2
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Will be bit louder and flow bit better , I'd say go for it. Got nothing to lose and only sound and power to gain
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Old 04-10-2018, 04:41 PM   #3
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Ls3 mufflers are know to be a more straight through , and l99 have a sound cancel camber in the cut aways I've seen
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Old 04-10-2018, 04:54 PM   #4
SSEssence
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L99 exhausts just have a huge resonator to tone out the AFM. Putting a LS3 exhaust would make it louder but drone when AFM kicks in.
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Old 04-10-2018, 11:12 PM   #5
rontammy0
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Quote:
Originally Posted by SSEssence View Post
L99 exhausts just have a huge resonator to tone out the AFM. Putting a LS3 exhaust would make it louder but drone when AFM kicks in.
The afm isnt drone.....its annoying but not drone.
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Old 04-11-2018, 12:04 AM   #6
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Turn off DoD/AFM in your tune.

Then run what you want.
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