| Message |
pipe is welded to a rolled tube or perforated steel of the same diameter. Have you ever seen the inside of a "stinger" exhaust on an aftermarket 2-stroke bike exhaust? SAME principle. I know you think Nick is a god, but you are mistaken. He is a mere mortal. The PE's exhaust pipe actaul has a very slight taper in it as it meets the muffler. This is for the exact reason that you stated, that any area change creates a pressure loss. The piping is designed so there is no pressure change. The can on the PE is solidly packed with sound absorbing material, that is all. No baffles, no expanding areas, nothing. Just a single diameter perforated steel tube surrounded by sound absorbing packing. Perhaps this will help clear things up for you, an exact quote from the GReddy site: "GReddy Exhaust Systems are some of the finest exhausts available today. All GReddy exhaust systems (SP, PE, MX, EVO, & G2) are complete cat-back units, which do not effect emissions related hardware. Each specific application bolts-on, using factory mounting hangers. Our unique straight-though design allows for the perfect compromise between Power, Torque, and a deep- throaty Sound. Although mufflers can look the same from the outside, our internal construction sets our systems apart. With countless hours of testing the performance and sound, our expert Exhaust Technicians tune each application by varying the size or sequence in the perforated tubing and/or changing the amount of non-corrosive stainless-steel mesh and sound-suppressing composite cube packing material within each muffler can. The quality and workmanship extends through the outer shell of the system. With laser-cut, computerized mandrel bent aluminized tubing, thick flanges, OEM style hangers, and a polished stainless-steel muffler can and tip, GReddy exhaust look as good as they perform. Each system type (SP, PE, MX, EVO, & G2) varies in the outer look as well as flow characteristic for each application. Check below for a complete listing of GReddy's high performance exhaust systems."
Mike ------------------------------------------------------
   |
 |
