aFe POWER universal silicone coupling kit sized 4.50" x 4.00" ID with a 3" length. The coupling is 100% silicone with three layers of polyester reinforcement and a 4mm wall thickness for strength. Two stainless steel clamps are included for a corrosion-resistant, secure connection. Designed for joining intake, intercooler, or charge piping where those diameters are required.
aFe POWER Universal Products Coupler Kit (4-1/2 x 4)in ID x 3in L - Black