Pontiac Firebird 400 Idling - MagnaFlow mufflers

Pontiac Firebird 400 Idling - MagnaFlow mufflers

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Soundcheck - Firebird with Magnaflow mufflers
1978 Pontiac Firebird Formula 400 Dynomax headers 2.5" true duals Mangaflow mufflers





1969 Firebird 400 with Dynomax Ultra Flos
Pontiac 408, Comp Cam 274 XE, turbo 400 with shift kit and 2800 stall, 4.10 posi, 2.5 Exhaust with Dynomax Ultra Flos





Pontiac Firebird 1970 Mangnaflow Fitted by Souhan.ie
Magnaflow Exhaust System Fitted by Magnaflow.ie - WWW.SOUHAN.IE - Trim, Co. Meath





600+hp `73 Buick GS VS 500+hp `75 Pontiac Firebird T/A 1/4mile drag race
600+hp 1973 Buick Gran Sport Stage 1 VS 500+hp 1975 Pontiac Firebird Trans Am 1/4mile drag race




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