ac you need to learn a little about carbon fiber, cf if rigid, so beating a soft pipe with it will dent the softer pipe, but under impact the softer pipe is going to save your header, pipe and engine, carbon will either fracture, shatter. rendering it useless, or it will smash the exshaust poet off your engine, in normall use with no nasties the cf will be fine, but so will the normall pipe at a cheaper price