Description:Cat® Exhaust Extension Pipes are components of the exhaust system consisting of a collection of pipes, usually of carbon steel, that channel the exhaust gases from the cylinders of a engine to the exhaust pipe. Each Cat® Pipe utilizes superior materials and processes, fabricated specifically to withstand the application’s pressure and flow requirements which will ensure a long life and proper machine functionality. Engineered with a specific application in mind, every Cat® Pipe is designed and manufactured to exacting tolerances to ensure proper alignment with existing systems on your Cat® Machine.Application:Cat® Extension Pipes are used in the exhaust systems to carry out the exhaust gases. Consult your owner's manual or contact your local Cat® Dealer for more information.