Downpipe met Katalysator BMW M135i F20/F21 en 335i/435i F30/F31/F36 N55 B30A mercedes-benz-a-klasse-w177---18----45-amg---387---421-esi4735160 With a diameter of 302

With a diameter of 302 mm and six reverse cross-slots

Option 1: Retain the original (OEM) blow-off valves

Cotton Mesh Filters: Offer excellent filtration properties and improve Intake sound

Reduces engine torsional vibrations

Downpipe met Katalysator BMW M135i F20/F21 en 335i/435i F30/F31/F36 N55 B30A mercedes-benz-a-klasse-w177---18----45-amg---387---421-esi4735160 With a diameter of 302The Downpipe with catalytic converter for the BMW M135i F20 F21 and 335i 435i F30 F31 F36 fitted with the N55 B30A engine is a high quality sports Downpipe for the popular N55 powered BMWs. Manufactured from stainless steel, suitable for models up to June 2013. Features Made from high quality stainless steel Includes sports catalytic converter Improved exhaust flow for increased power Specifically designed for the N55 B30A engine up to June 2013