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Old 03-27-2024, 06:10 AM   #2
102SS
waiting at the tree
 
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Drives: SIM 2010 2SS/RS A6
Join Date: Apr 2013
Location: Niagara Falls
Posts: 3,269
We suffered with a single exhaust and a transverse muffler simulating duals on these cars from the factory since 1967.

Only the 1969 Z/28 with the 302 and 4 speed got dual exhaust.

We finally got a true dual system from the factory in 2009
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2010 2SS/RS A6 ZL1 Rims
60ft 2.03 13.08 at 107.82 (4/28)
2009 Pontiac G8 3.6L the DD
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