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LS3 exhaust on an L99
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02-06-2019, 10:06 AM
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krusher
Drives: 2010 Camaro SS/RS CGM
Join Date: Dec 2011
Location: Oskaloosa, IA
Posts: 632
Its fine, I believe the only difference was for noise reduction when AFM kicked in. If it was unrestricted you would hear a "farting" noise when the cylinders activate. If you have AFM deactivated then there is no issue, I believe.
krusher
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