For Mitsubishi Lancer Evolution Stainless Steel Turbo Downpipe+Flex Pipe - Evo 8/9 Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends TIG Welded CNC Machine Flange for Strength and Durability Increase Engine Output and Efficiency; Gain 10 - 15 HPs (Approximately) Inlet: 3" / Outlet: 3" / Welded in Flex Pipe Application: Please Check Part Finder on Top of The Page (Professional Installer is Highly Recommended No Instruction Included)