I'm looking to replace my exhaust which has been on my car since the 90s. After looking at different catback systems I've noticed most come with flo-tubes that have a ball & socket connection that attaches to the hpipe & they appear to be already welded to the mufflers or do they clamp on? My car has a 3 bolt flange on the hpipe & i would like to re use the flotubes if I can rather than buy a new hpipe. So what I want to know is do most catback sytems come with the flotubes welded to the muffler or is that just how they look in the pictures in the ads? I'm open to try out any exhaust too as I've currently got dynomax super turbos on the car & want to try something different so any suggestions there also? Keep in mind I'm also looking for a bolt on system that I can install in my driveway as there aren't to may exhaust shops around here. This is for a foxbody with a 2 1/2" exhaust. Thx.