Megane 4 RS280 DownpipeHigh flow downpipe to suit all Megane 280 models, features include: Full 304 grade stainless steel construction 10mm thick turbo flange and 10mm thick outlet flange 76mm diameter,1. 6mm wall mandrel tube bends 100 cell metallic core catalytic converter O2 sensor spacer included in kit, reducing chance of MIL lights Fully TIG welded in Sydney, Australia Includes new outlet bolts. High flow downpipe to designed to bolt on to the original system. We