trans am firebird exhaust flowmaster idling

78 t/a 400 4-speed with headers & flowmaster mufflers.

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





Sound Testing: Flowmaster's 8 Hottest Mufflers
We test 8 of Flowmasters most popular mufflers for street cars to muscle cars to full blown race cars! From mild to aggressive, find out which muffler is right for your car and get that classic Flowmaster sound. SUBSCRIBE to the POWERTV YOUTUBE Channel -- http://www.youtube.com/subscription_center?add_user=powertv ***** Visit Power Automedia's Online Magazines! Power Automedia is the #1 Automotive Performance Digital Publisher! Ford & Mustang - http://www.stangtv.com LSX GM - http://www.lsxtv.com Hot Rods & Muscle Cars - http://www.streetlegaltv.com Drag Racing - http://www.dragzine.com Street Rods! - http://www.rodauthority.com Chevy Muscle Cars - http://www.chevyhardcore.com Engine Performance - http://www.enginelabs.com Corvette - http://www.corvetteonline.com Dirt Track - http://www.onedirt.com





1979 Trans Am, Flowmaster 40 series
1979 Trans AM with Flowmaster 40 series mufflers and Hedman Headers





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.




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