CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing Heavy duty 16-gauge 304SS (Polished Finish Only) and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability 1-3/4 and 1-7/8 tubing diameters available for increased exhaust flow increasing performance and improved throttle response 3 collector for maximum strength and exhaust flow 7/16 thick header flange for a leak-free seal and maximum strength Available in a total of four finishes (Natural, Black Painted, Ceramic Coated, and Polished)
