aFe Magnum FORCE Intake Coupling Kit (5 IN ID to 4-1/2 IN ID x3-1/4 IN L) Straight Bellow- Black

Magnum FORCE Cold Air Intake System Spare Parts Kit

5 IN to 4-1/2 IN Reducer: This 3-1/4 IN long coupling is designed to connect to tubes with a 5 IN and 4-1/2 IN diameter. It's commonly used on aFe POWER cold air intake systems, but can be used for a variety of projects.

Flexible Bellows Silicone: Its bellows design is extremely flexible, making it easy to install, even when dealing with misaligned tubes. It allows for ample expansion, movement and vibration in-between two hard pipes.