91CaliTBIRD
Registered User
Hi, i just came back from the Muffler shop after taking off the resinator and replacing it with a Y-pipe and taking off the stock mufflers and installing 2 new "Magnaflow" mufflers. The cats. were left alone so far. Now instead of the p.s.i. boost maxing at 12 p.s.i. it maxes at 9 1/2 p.s.i.. It sounds ok but its noticably slower. I read all the questions and feedback regarding exhaust here at SCCOA before i went to the shop and i was certain i would get more power but instead im dissapointed. The rest of the car is stock including the supercharger pulley which is what im going to do next. (10%?) Will i get atleast all my power back and more with the 10% or 5% pulley. And which pulley should i use? Also i assume removing the air silencer would be a good idea? HELP ME!!!