aFe Power 21-22 Ford Bronco L4-2.3L (t) BladeRunner 3in Aluminum Cold Charge Pipe BlackSmooth transitions in the mandrel bent aluminum pipe decrease turbulence and minimize pressure loss, increasing horsepower and torque. This kit includes high quality, stainless steel, spring loaded T bolt clamps and heavy duty, 5 ply, polyester reinforced silicone couplings. This charge pipe kit features factory style billet aluminum quick connect adapter with an O ring to ensure a leak free fit while maintaining superior strength and durability.