I'm using a flowmaster, not only does it sound great but I noticed some performance difference.
1995 Ford Mustang GT
Magnaflow Exaust
Clear Corners
BBK Cold Air Intake
MSD Ignition
Alpine Security System
2 12' Alpine Type S Subs in Alpine Box
Sony 1100W Mono Amp
JVC CD/WMA/MP3 Deck
Sold!!!
1996 Ford Contour GL