For moderate towing (33' TT, ~9,000 lbs loaded), is there an advantage to a 5" cat-back? I'm satisfied with the Predator, and don't plan any further performance enhancments other than the exhaust (and gauges, may be an airbox, really, who knows? ):h ). Can lower EGTs and better flow be obtained with just replacing the factory muffler, or is a full cat-back a better plan? Thanks to all on this forum, as the D-max is now the primary apple of my vehicular eye, rendering my 400HP Z/28 to second-class citizen status (anyone looking for a nice convertible?-Just kidding)!:D Do any exhaust come prepped for the pyro sending unit?

Thanks,

Mark