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Re: 2.5" exhaust ?s
I have a 454 with dual 2.5 from headers back with long glasspacks. Sounds mean but not obnoxious and I get a lot of compliments on it. I didn't notice any performance differences. Had flowmasters on it before the glasspacks.
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1978 GMC K25
1984 Chevy Scottsdale K10 built 350 4"lift - SOLD
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