aFe Bladerunner Intercooler Hot and Cold Side Tubes for 22-23 Volkswagen GTI L4-2.0L (t)Smooth transitions in the mandrel bent aluminum pipes decrease turbulence and minimize pressure loss, increasing horsepower and torque. This charge pipe kit provides a smooth transition between the turbo and the engine for lower operating temperatures and increased power. This kit includes high quality, stainless steel, spring loaded T bolt clamps and heavy duty, 5 ply, polyester reinforced silicone couplings for superior strength and durability.