Got most of my 95 F150's (351W) exhaust run yesterday. I eliminated the rear cat (no emissions testing here) I cut the "S" off between the cats, welded on a 3-1/2" collector reducer to the front cat, from there it's a straight shot back to the tail pipe, I welded a 4 ft section of 3" pipe to the collector, that runs into a Walker #17195 single inlet/dual oulet muffler ($27 thru Summit). When I get the truck registered, I'm gonna run it out to my exhaust guy's shop to let him run the tailpipes out the rear. The $27 Walker Pro-Fit muffler sounds great, much like dual turbos (at half the cost) Headers are Pace Setter shorty's (Summit's "house brand" headers) I left the Y pipe as to keep the O2 bung and sensor.