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**Steeveedee** · 03-01-2021, 11:49 AM

Vote #3 for the Cadillac muffler(s). Single or dual. One of them muffles a 500 CI engine, so it would not hurt a 350. Also, 2-1/2" pipes are OK, but unless you have manifolds with that size outlet, they don't help all that much. I had a '64 Impala with 2-1/2" outlets, but the tail pipes were 1-3/4", IIRC.

03-01-2021, 11:49 AM	#4
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,108	Re: Stock quiet muffler recommendation. Vote #3 for the Cadillac muffler(s). Single or dual. One of them muffles a 500 CI engine, so it would not hurt a 350. Also, 2-1/2" pipes are OK, but unless you have manifolds with that size outlet, they don't help all that much. I had a '64 Impala with 2-1/2" outlets, but the tail pipes were 1-3/4", IIRC. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA