The Flo~Pro Passenger-Side Up-Pipe with Gaskets is a direct-fit replacement for the factory up-pipe on the 2001-2016 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Factory up-pipes are a common source of exhaust leaks that cost turbo spool and drive up EGTs; this heavy-duty Canadian-made replacement is built to seal properly and last.