3-7/8” Internal Diameter:
This 2-1/2” long coupling is designed to connect to a tube with a 3-7/8” 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.
Stainless Steel Clamps:
Two corrosion-resistant stainless-steel worm clamps (#060) are included, providing a secure seal for virtually any application.
Note:
Not for use on pressurized side of supercharged or turbocharged applications.
Direct Replacement for P/N 05-01375. Coupling Kit: 3-7/8"ID x 2-1/2"L Bellows (Silicone).
WARNING: 
