I am about to add on a new cat-back exhaust system. I have done some research and i think I'm going to go with Flowmasters American Thunder cat-back system. I am looking for improved performance and most importantly a great sound(and loud). How much would it cost me to get a system like this professionally installed?

 

Well, over here in WI at a professional muffler shop, did it for my friend's 72 monte carlo for $137 but, that was from the headers back. So, for you, i'd assume it would cost less. I was quoted $130 for my exhuaust installed from the y-pipe back
-Abe

 

usually at least $100. do it yourself. it will only take an hour for you and a friend to accomplish if you buy a good kit. dynamax and flowmaster stuff usually bolts right in place with little or no effort.

lata
tim

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91 Camaro RS-LO3,Auto.
14.301 @ 94.39mph

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hey I got the american thunder 3" dual catback for Christmas and got it installed at a shop in my town... charged me $80 and did hell of a job... i seriously recommend the american thunder... its not tinny AT ALL... at least mine isnt.. i love it... turns heads

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1987 Midnight Blue Camaro IROC-Z, 350 TPI out of an '88, Accel 8.8 wires, hypertech air foil, flowmaster american thunder 3" dual outlet cat-back... slipping tranny!! (T5 swap next spring!!)

 

I had Master Muffler install my 3" flowmaster
cat back system. They hung it and welded it and only charged me $40.00. Its the best thing you can do for your car.