200cpsi catalytic converter downpipe for 2.0TFSI engine mounted in: VW GOLF VII GTI Downpipe diameter: 76mm (3 ") Outlet diameter: 66mm TurboWorks' downpipe is made of 100% stainless steel Downpipe with 200cpsi cat dedicated to 2.0TFSI engine mounted in: VW GOLF VII GTIDiameter of the downpipe: 76mm (3 ") Outer diameter: 66mmTurboWorks downpipe, made 100% of stainless steel.Downpipe with 200cpsi catalyst for 2.0TFSI engine installed in: VW GOLF VII GTI Downpipe diameter: 76mm (3" ) Outlet diameter: 66mm TurboWorks Downpipe is made of 100% stainless steel.