I Have headers, a straight through pipe with resonator and a single lukey muffler, and to be honest, it sounds like a tractor. Pretty much like the one in the vid on the previous page.
i run my 31" Pirellis @ 40 psi on the road and 20 on the trail. If i run them at any less than 40 she gets REAL floaty in the back end. also, talking to the local tyre guy, he reckons that 40psi will net more miles. we'll see. As for the hard ride? My DD is a subie with bilsteins and 215/45/17's running 38psi front and 36 rear. The pathy is like a luxo barge compared to that.
As for the floatyness, i suspect new shocks will help somewhat.