Hey guys, I have a 305TBI right now, I was thinking of putting on a Flowmater American Thunder exaust system on, I will get a 3 inch cat and y pipe, will the car sound anywhere near the sound of a Mustang? I want a mean tone, thanks alot everyone!

 

I love the way Mustangs sound....but yeah anyway, the American Thunder will make your car sound pretty nice and probably a little louder than a Stang.

 

Mustangs & F-bodies don't sound the same, no matter what muffler you stick under the cars. Mustangs have a higher pitched more "whiney" and "gurgled" tone, while our cars have a "deeper & more throaty" tone, more trucklike, you might say. Anyway, I have a 3'' cat-back Flowmaster system on my 305TPI, and it sets off car alarms & makes itself heard right up there with the best Mustangs!

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Brian P.
'91 TransAM: 305TPI -=flowed=-

 

A good cat-back exhaust will definitely give you sound boost.....but it won't be really complete until you get headers installed

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92 Camaro RS, LO3, 5-spd, T-tops

Performance:
K&N Open Air Filter, Edelbrock performer TBI intake, Fastchip Prom, Timing +4 degrees, Centerforce clutch, Xact 8mm wires, SLP 1 3/4" Headers (coated), Flowmaster Catback Exhaust, Z28 Grille w/aftmkt fog lamps, MacEwen white-face guages
Electronics:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers.
NEXT UP: TBI mods, 3.42 gears w/Torsen posi

 

Plus on mustangs the two mufflers resonate off each other , which is where they get there gurgled sound from , most two muffler cars like that will have a similar sound , a buddy of mine has a 70 olds cutlass with a olds 350 in it , he did exhuast last year on it with metco mufflers and it sounds just like a mustang. but a little more deeper sound