OK,...against popular belief i wound up going with a good "Y" pipe, and a Flowmast 40 with 3" inlet and two 3" outlets which dump right behind the axle. I got a new muffler free so i decided to give it a shot. Yeah, it's too loud for me, but not as bad as i thought. Performance seems up, and i'll be measuring MPG this week. My neighbors are probably hating me since i leave at 0540 though. If i cant stand it after a month (i'll give it 4 weeks to grow on me) I'll change it out for a SpinTech. Anybody know which is the larger model of spinTech equal to a Flowmaster 50? STILL HAVING GOOD FLOW?