The aFe Magnum FORCE 4" ID x 2-1/2" L straight bellow coupler is an injection-molded, high-temperature silicone connector intended to join 4" OD tubing. Supplied stainless steel worm-gear #060 clamps secure tight, corrosion-resistant connections suitable for industrial, commercial, truck, off-road, and racing use. The coupler allows for expansion and vibration without stressing joints. Not for use on pressured or supercharged/turbocharged applications; clamps provide durable, long-lasting fastening.
aFe Magnum FORCE Silicone Coupling Kit 4in ID x 2-1/2in L Straight Bellow-Coupler - Black