aFe 46-20378-R BladeRunner 2-1/2 IN Aluminum Hot Charge Pipe RedaFe 46 20378 R BladeRunner 2 1 2 IN Aluminum Hot Charge Pipe Red Flow and Performance: Smooth transitions in the mandrel bent aluminum tubing decrease turbulence and minimize pressure loss, increasing horsepower and torque. Perfect Fit: This tube kit features a CNC machined turbo adapter flange, stainless steel T bolt clamps, and heavy duty 5 ply polyester reinforced silicone couplings for superior strength and durability. Custom Appearance: It's