Mitsubishi Evo 10 4B11T 3.5" Cast Dump / Front Pipe - Version 23. 5 inch dump pipe with gasket less 2 piece design for easy fitment Top mount O2 sensor port accessible via engine bay for wideband gauge tuning Direct bolt on design, perfect fitment with provisions for OEM turbo heat shield High quality flex joint minimises risk of cracks in the rest of the exhaust system Compatible with RHD and LHD models Version 2 includes a stainless 3. 5 inch CAT delete pipe that connects to the upper dump pipe section via a 3.