Our mufflers for International® and Case IH® Combines are manufactured by experienced craftsmen here in the United States. All mufflers have welded seams and use aluminized steel for critical components. These features ensure that our products resist the corrosive effects of air, heat, and the by-products of combustion that work to shorten muffler life. Additionally painted either silver or black to cosmetically match its OEM counterpart, as well as add further protection from the elements.