6" OD to 4" OD Diesel/Race Exhaust Reducer / Adapter / Coupler

Product Description

The AP Exhaust 9720 reducer coupler is designed to step down between two different size ID connections by using outside diameter ends. This coupler is 6 inch OD on one end and 4 inch OD on the other end, which means both ends are made to slip into matching ID components. The 6 inch OD end slips into a 6 inch ID pipe, muffler, or exhaust component, and the 4 inch OD end slips into a 4 inch ID pipe, muffler, or exhaust component. This makes it a great solution when you need to transition between a 6 inch ID connection and a 4 inch ID connection in a clean, secure way without using multiple adapters. The tapered design helps maintain proper exhaust flow and reduce turbulence between sizes. Made from durable aluminized steel, it offers good resistance to heat and corrosion and can be welded or clamped for a strong, leak free joint. Please verify your component inside diameters before purchasing to ensure proper fit.