You'd be amazed at just how effective those precats are. I'd leave them be, if you going to pull a cat, pull the rear one.
Dont gut 'em anyway, drive a pipe all the way through, the openess of the chamber causes a backflow effect that robbs more power than the cat does.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.