I recently purchased and installed the E-Cutout from DMH Products. All I can say is "awsome". The e-cutout is an exhaust cutout that installs right behind the catalyic converter. With the old cutouts used on hotrods you used to have to get under your car with a wrench and open them up. The beauty of the e-cutout is that all you have to do is hit a switch on your dash that opens and closes the cutout electrically. Even though I have a Magnaflow catback exhaust system I never really liked the four cylinder sound. Now whenever I want it I have the sound of a V8 with a cam. Truly remarkable. I also get a little more horsepower and tourque by my "seat of the pants" estimation. Here's the URL of DMH Performance if any of you are interested in an awsome sounding PT.
http://dmhperfproducts.homestead.com/borlaplate.html