aFe 20-23 GM Diesel Trucks V8 6.6L L5P BladeRunner 3.5in Aluminum Cold Charge Pipe - BlackSmooth transitions in the mandrel bent aluminum pipes 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 coupling. This charge pipe kit also features factory style billet aluminum quick connect adapters with o ring seals to ensure a leak free fit while maintaining superior strength and