This is a full pipe and black muffler system that fits our stage 1 and stage 2 turbo system for the Suzuki Hayabusa. If you already own one of these turbo systems and would like to to run a full pipe with a muffler then this is what you need. PLEASE NOTE! EXHAUST SYSTEM DOES NOT COME WITH THE WASTE GATE! YOU HAVE TO SUPPLY YOUR OWN WASTE GATE, TIAL 38MM MVS IS WHAT YOU NEED!