Soundcheck - Firebird with Magnaflow mufflers

1978 Pontiac Firebird Formula 400 Dynomax headers 2.5" true duals Mangaflow mufflers

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1977 Trans Am new Magnaflow XL mufflers
1977 Trans Am new Magnaflow XL mufflers





Soundcheck - Flowtech Raptor
Dynomax Headers 2.5 H-Pipe Flowtech Raptor Muffers





1981 Trans Am - Jegs 2.5 inch exhaust system with flowmaster 40s
1981 TA Jegs 2.5 inch kit without mufflers, bought flowmaster 40s, no cats, stock manifolds. 4.9 liter pontiac motor 301.





Magnaflow muffler comparison
A comparison between my old glasspack mufflers and the new Manaflow's I just fitted. It's much quieter and has a better tone with the Magnaflow's.




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