I have for sale a Bassani X-pipe with removable cats. Fits all 99-04 Mustangs. X-Pipe has been on car for about 7K miles. And I had the cats on for less then 1K miles.
Here is the exact X-pipe for sale:
Bassani Mustang Catted X-pipe (99-04 GT, 01 Bullitt, & 99-01 Cobra - Manual) 46993 - Free Shipping!
$300 picked up