Originally posted by Derk2000: That's my exact setup!!! I have 2.5 until the stock rear split, and a SHO ypipe w/ cat. I did the ypipe first, and about 4-5 months later the 2.5" piping. The piping made a nice difference, but I'm not sure if it's as much as the ypipe. I eventually pulled out the two rear mufflers...  I love it. It was a little too quiet w/ the two stock mufflers in, but I live at high altitude. I recently went to lower elevation and my car was considerably louder.Derk, what kind of mufflers did you use and how do you like them? I am considering the 2 1/2" DYNOMAX Race Magnums. I think the obnoxious noise level should be a minimum with the resonator and cats in place. Nothing for sure yet though.
Mark
00 svt tour- K/N filter, SHO SHOP Y pipe, 2 1/2" back to rear Y, improved tunes.
91 sho- Hi flow Y pipe, 2 1/2" exhaust, edlebrock rpm series 2 1/2" muffs, modified intake, K/N filter, modified manifold, 190 lph fuel pump, magnacor wires, ford double platinum plugs, underdrive pullies, custom LPM, 8 pound aluminum flywheel, hi revs race duel diaphragm kevlar clutch, solid torque limiters, poly bushings evrywhere, heavy duty subframe bushings, heavy duty engine and trans mounts, subframe connectors, front and rear strut tower braces, eibach springs, tokico struts, camber ajustment plates, light weight swaybar end links, cross drilled rotors, carbon fiber pads, 225/55/16 SP 5000's, redline water weter, redline trans fluid, mobil 1 synthetic oil, police grill and the need for speed!!!
It's a chronic disease.
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