Smooth transitions in the mandrel-bent aluminum pipes decrease turbulence and minimize pressure loss, increasing horsepower and torque. This kit includes high-quality, stainless-steel, smartseal clamps and heavy-duty, 5-ply, polyester reinforced silicone couplings for superior strength and durability. Finished in textured red powder coating with a unique laser-etched aFe POWER logo for a custom look.