Flow and Performance Smooth transitions in the mandrel - bent aluminum tubing decrease turbulence and minimize pressure loss, increasing horsepower and torque. Wrinkle Black Powder - Coated Finish Not only does the black powder - coated finish make for a striking look, but it also insulates the tube from engine heat and protects from corrosion. Perfect Fit These tubes include high - quality stainless - steel spring - loaded T - bolt clamps and heavy - duty five ply polyester reinforced silicone couplings. This intercooler tube kit features factory style billet aluminum quick - connect adapters with O - ring seals to ensure a leak - free fit while maintaining superior strength and durability.