The high temperature 2-PLY reinforced silicone reducer coupler is designed to connect to a (3.90″ x 3-1/2″) OD tube and is 2.35″ long. Standard stainless steel worm-gear #056 and #064 clamps provides tight connections, durability and is corrosion resistance for industrial, commercial, truck, off-road and racing applications.
Magnum FORCE Cold Air Intake System Spare Parts Kit (3-7/8 IN ID to 3-1/2 IN) ID x 2-1/2 IN L Straight Reducing Coupler – Black
(3-7/8 IN ID to 3-1/2 IN) ID x 2-1/2 IN L Straight Reducing Coupler-Black