The Monza hi-flow turbo down-pipe with Pacesetter Armor Coat features 16-gauge 3 inch diameter mandrel-bent tubing for maximum flow, and T-304 stainless steel flex joint for durability. The down-pipe bolts to the bottom of the stock turbo housing and retains stock oxygen sensor location, and then bolts to the stock converter or to any custom 3 inch system. Comes standard with polished ArmorCoat metallic ceramic coating.