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Old 11-29-2012, 09:41 PM   #43
Ponykiller511
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I saw the same pics....wonder if they were from different years or if they L99 and LS3.
One had a capped J tube and one did not. Maybe the J tube was to help kill the drone on L99 with the AFM.
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Old 11-29-2012, 09:57 PM   #44
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[/QUOTE]
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COLOR="Gray"]2012 RS/SS L99 Silver Ice Metallic[/COLOR]
Texas Speed custom cam and Whipple 2.9
Work in progress stay tuned
Pfadt Stage 2 kit with ZL-SPEC sway bars and rear arm kit
Pfadt Coilovers
Pedders Stage 1 bushings / BMR Subframe connectors and tunnel brace
American Racing long tubes w/ high flow cats
CAI Intake / Rotofab washer bottle / Roto Fab engine covers/JRE race scoop/Forgestar F-16
/Oracle LED side markers, backup lamps and DRL
DYI 5 DRL harness / Heritage Grill
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Old 11-29-2012, 10:00 PM   #45
Ponykiller511
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different years or different engines? Bet J tube is on L99
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COLOR="Gray"]2012 RS/SS L99 Silver Ice Metallic[/COLOR]
Texas Speed custom cam and Whipple 2.9
Work in progress stay tuned
Pfadt Stage 2 kit with ZL-SPEC sway bars and rear arm kit
Pfadt Coilovers
Pedders Stage 1 bushings / BMR Subframe connectors and tunnel brace
American Racing long tubes w/ high flow cats
CAI Intake / Rotofab washer bottle / Roto Fab engine covers/JRE race scoop/Forgestar F-16
/Oracle LED side markers, backup lamps and DRL
DYI 5 DRL harness / Heritage Grill
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Old 11-29-2012, 10:10 PM   #46
mikester0612
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The one with the j-pipe had to be the L99 and the one with the straight has to be the LS3 due to AFM reasons.
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Old 11-30-2012, 02:33 PM   #47
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Quote:
Originally Posted by Ponykiller511 View Post

different years or different engines? Bet J tube is on L99
Is there carbon build-up on the inside of that can? Bet that interior tube is perforated, making the interior cavity a "sound absorbing" chamber.

And the end of the j-tube in the other muffler is not capped, but uses that chamber to "bounce" the offending drone frequency around in.

Walker Engineering at it's best.
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Old 12-01-2012, 06:56 AM   #48
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Originally Posted by ZWA SS View Post
I removed the resonator and had straight pipe to my flowmaster American thunder mufflers. Loved it
Removed mine, same flowmaster American thunder and drone like crazy! Almost wish I'd stayed stock.
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