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Dual mode exhaust
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05-15-2013, 09:43 AM
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Nick821
Drives: 2013 BRM SS/RS Convert
Join Date: Feb 2013
Location: Long Island NY
Posts: 66
Zorn: Yes, I was looking to use the after-market "NPP in a Box" setup but not sure if the L99 intake manifold has the same vacuum port on the back like the LS3 one.
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