BMW F-Series B58 HJS-ECE Downpipe Kit

Downpipe Kit with HJS-ECE-300CPSI Racing catalyst for BMW M140i 340i & 440i made out of high quality stainless steel 1.4301 (SS304) complete ?3,5 and adapter for stock exhaust HJS (ECE approval) 300CPSI EU6 Racing Metal Catalytic Converter 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque Only suitable for cars without GPF!