The Competition Package for the BMW F-series consists of the Intercooler Upgrade Kit, the N55 Downpipe Kit with 300 CPI racing catalyst and fits the following vehicles. BMW M135i F20 / F21 model 07/2013 - BMW M235i F22 BMW M2 F87 BMW 335i(x) F30 / F31 / F34 model 07/2013 - BMW 435i(x) F32 / F33 model 07/2013 - Intercooler Upgrade Kit 200001046 Stepped Competition Intercooler Core. Size 520 x 210 x130, 11.752cm� Volume (OEM 510x130x110mm, 7293cm� Volume). Approx. 85% bigger surface over OEM IC. CAD / FEM optimised Aluminum Cast Endtanks. Plug & Play Installation using the stock pipework, no cutting or bumper removal required. Weight 6,6kg Including T�V certificate! packing list: 1 intercooler 1 mounting material 1 installation instruction 1 T�V certificate Downpipe-Kit N55 with 300CPI catalyst 500001013 replacement for OEM BMW Part# 18328602882 made out of high quality stainless steel 1.4301 (SS304) 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque 300cpi catalytic converter (without any diagnostic mistake) connection diameter 118mm Error display in the DME possible.