The Buschur Racing 3" Evo SD rear section is designed to work primarily with the Buschur Racing 3" downpipe and Buschur Racing 3" catback exhaust. This offers a straight through 3" ID design. Made from stainless steel with a slip-fit connection on one end and a polished 4" exhaust tip on the other this is designed to replace the larger mufflers we offer for our system when using a JDM Evo 9 rear bumper or just for a cleaner look with your factory bumper. This is a direct replacement of the Bullet or Magnaflow mufflers used with our standard systems. if you're looking for a complete turboback utilizing this please look at our SD turboback exhaust also here online or give us a call at the shop. Please note this piece will come in the the normal slip fit configuration. The above picture simply shows a different option with the Vband which can be done upon request.