I am looking to trade exhaust pipes. I have a '03 wr450 and have the FMF titanium Factory 4 race muffler and quiet insert and would like the ProCircuit type 496. Why you ask?? well I am trying to be loyal to ProCircuit and the FMF is just way to loud for the tree bangin I do. aswell as the spark arrestor too. I love the sound but it realy does belong on a YZ racing. Pipe is in pretty good shape all hardware included.