red5.0, You will have great sound with just the flowmasters, but I have to be honest, it'll just be soooo much better with off-road H-pipe , you'll get that real hollow, throaty , Mustang sound and better flow.
Remember, when you first get your mufflers on (even if you don't get h-pipe (~$160)) it won't sound as good as it will a week or so after they have been installed. Needs to heat up and cool down some amt of times.
“…because, no one’s really gonna be free until nerd persecution ends.” ---Revenge of the Nerds
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'79 Mustang Coup
4" Cowl
Weld wheels (15x6;15x8)
Stock 5.8L
C4 w/ shift kit
1.5" MAC full length headers
Holley 750 CFM
Edelbrock intake
2.5" Off road H-pipe, 2-chamber Flowmasters
8.8" Rear end w/ 2.73:1 gears (sucks!) (awaiting installation of 3.55s)
Front: 225/60/15 Rear: 255/60/15 Eagle GT II
Sucky Purolator air filter that's choking my car.
