This system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Includes high flow catalytic converters which are less restrictive than the factory converter providing maximum flow. Utilizing factory style hangers and machined flange this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation. Tube lengths are optimized for true pulse control technology which improves flow and performance. 100% TIG-Welded for race-proven strength and durability. Twisted Steel Downpipe 3 IN 304 Stainless Steel w/ Cat Volkswagen Golf R 15-19 L4-2.0L (t) Volkswagen Golf R 15-19 L4-2.0L (t)