HPS 2" ID, 3 Feet Length, Silicone Straight Coupler Coolant Tube Hose, High Temp 4-ply Reinforced, Black, 51mm ID Aerodynamic-Accessories but it's not required for

but it's not required for installation

OEM rubber intake pipe with smooth mandrel bent aluminum tubing and pair it with a DC Sports high flow

Heavy use will show wear over time

Fitment Fits 1999-2013 Chevy Silverado / GMC Sierra Standard Cab

HPS 2" ID, 3 Feet Length, Silicone Straight Coupler Coolant Tube Hose, High Temp 4-ply Reinforced, Black, 51mm ID Aerodynamic-Accessories but it's not required forHPS 2" (51mm) x 3 Feet Long High Temp 4 ply Reinforced Black Silicone Tube Coupler Hose meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. HPS performance silicone Tube Coupler Hose is designed and engineerd to meet high performance requirements specified in various industry standards, therefore make it great for marine and industrial use, custom