The Competition Package for the BMW F-series consists of the Intercooler Upgrade Kit, the N55 downpipe kit with 200 CPI racing catalyst and fits the following vehicles. BMW M135i F20 / F21 till 06/2013 BMW 335i(x) F30 / F31 / F34 till 06/2013 BMW 435i(x) F32 / F33 till 06/2013 Inetrcooler 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 mnstallation instruction 1 T�V certificate Downpipe-Kit N55 with 200CPI catalyst 500001010 replacement for OEM BMW Part# 18328603875 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 200cpi catalytic converter connection diameter 105mm