Diamond Eye 4inID-5inOD ADAPTER SS ADP400-500-SS

This adapter from Diamond Eye Performance is made from stainless steel, giving you a solid connection point that resists rust and corrosion. It's designed to transition from a 4-inch inside diameter pipe to a 5-inch outside diameter pipe, making it useful when you need to mate different exhaust system components. The stainless steel construction means it's built to last in the harsh undercar environment.

When you're working on an exhaust system, sometimes you run into situations where the pipe sizes don't quite match up. That's where an adapter like this comes in handy. It provides a clean and secure way to bridge that gap, ensuring a leak-free connection. Because it's stainless steel, you don't have to worry about it degrading quickly from road salt or moisture.