The competition package for the BMW F-series consists of the intercooler upgrade kit, the N20 downpipe kit with 200 CPI racing catalyst and fits the following vehicles. BMW 125i F20 / F21 BMW 220i F22 BMW 228i F22 BMW 320i (x) F30 / F31 / F34 BMW 328i (x) F30 / F31 / F34 BMW 420i F32 / F33 BMW 428i (x) F32 / F33 Intercooler Upgrade Kit 200001046 Stepped Competition Intercooler Core. Size 520 x 210 x130, 11.752cm³ Volume (OEM 510x130x110mm, 7293cm³ Volume). Approx. 85% bigger surface over OEM IC. CAD / FEM optimized Aluminum Cast Endtanks. Plug & Play Installation using the stock plumming, no cutting or bumper removal required. Weight 6,6kg Including TÜV certificate! Packing List: 1 Intercooler 1 Mounting material 1 Installation instruction 1 TÜV certificate Downpipe-Kit for the BMW N20 engine 500001011 direct replacement for OEM BMW Part# 18327645666 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