Generation III External Engine - Exhaust question



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T/A2000
04-20-2012, 10:48 AM
what size is the stock CB pipe on our LS1 cars?


Thanks,
Jason

MR_M
04-20-2012, 10:51 AM
2 3/4" iirc
T/A2000
04-20-2012, 11:28 AM
Thanks