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Re: LS swap exhaust too loud.... Options
Mine's near silent with manifolds and cats. It's the headers, for a start, I think. I have Dynomax and they're fairly quiet until opened up.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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