Diamond Eye 3.5inID-5inOD ADP350-500

This exhaust adapter from Diamond Eye Performance is made from aluminized steel, a material chosen for its ability to resist corrosion and handle the heat of exhaust systems. It features a 3.5-inch inner diameter on one end and a 5-inch outer diameter on the other, allowing you to connect exhaust pipes that don't match in size. This is a common need when installing aftermarket mufflers or custom exhaust sections where pipe diameters might differ from the factory setup.

The adapter is designed to slip-fit over the smaller pipe and accept the larger pipe, creating a secure connection. Aluminized steel offers a good balance of durability and cost for exhaust components that aren't exposed to the elements as much as other parts of the vehicle. It's a straightforward piece that gets the job done, ensuring your exhaust gases flow smoothly from one section to the next without leaks.