Thanks; I just installed Pier's 4K GSK and nudged the plate a tad and now need EGT reduction. I am thinking 4" down pipe to a 5" system exiting in front of the rear wheel with eventual plans for an HX-40 (what's this I hear about an HX-55?). I would also like an exhaust brake (someday), so I assume a remote mount 4" brake is my only option. That reduces the effectiveness of a 5" system, but a single point of restriction (the brake) has less flow restriction effect than an entirely 4" system, or so I think.
Any thoughts on this?
Steve