any one here with weld on flow master 40 ?

mine were $170 installed. I bought the mufflers from Performance Peddler on eBay when they first came out for $60 a piece (I picked them up from him locally in Detroit). Then, a local shop in Detroit cut out the stock muffs and welded the new ones for $50 bucks.
 
i have spintech prostreets with an o/r x pipe on my car and it has a really nice rumble to it. i constantly get compliments on the way it sounds, but be warned its very loud with the o/r x pipe. wouldnt be bad on a stock midpipe.

my dad has weld in flowmaster 40s on his 03 mach with stock everything else and to me its just way to quiet.
 
what shop did you go to?
There is/was a muffler shop right behind Jack Demmer Ford on Ford Rd. I forgot their exact name. I think it is D&R Performance exhaust or something like that. They used to be on Plymouth Rd in Livonia but moved to Westland. I don't know if they are still there though.

I'll try to locate the receipt from when I had it done when I get home.