aFe POWER universal silicone coupling kit sized 5.00" x 4.50" ID with a 3" length. The coupling uses 100% silicone construction reinforced by three layers of polyester and a 4mm wall thickness for durability. Two stainless steel clamps are included to ensure a tight, corrosion-resistant seal. Intended for intake or intercooler plumbing where a 5" to 4.5" transition is required.
aFe POWER Universal Products Coupler Kit (5 x 4-1/2)in ID x 3in L - Black