BMW GENUINE M PERFORMANCE SILENCER SYSTEM. 18 30 5 A23 283. This listing is for the BMW M Performance Silencer System. This includes the Exhaust system 18.30.5. A23.283, Titanium Finisher 18.30.5. A23.286, Carbon Rear Diffuser 51.95.5. A19.8B5 and 4 Tailpipe Trims in a Black Finish 18.30.5. (The Images are for illustrative purposes only and the product may vary). Suitable for BMW 3 Series M3 G80, BMW 3 Series M3 G81 Touring, BMW 4 Series M4 G82 & G82 LCI and BMW 4 Series M4 G83 & G83 LCI Models. Please provide your VIN (Vehicle Identification Number) or Vehicle Registration, along with the item(s) details, and a member of Vines Group BMW will get back to you. If you would like to enquire about a price for fitting, collection details, or anything else then please message us and we will endeavour to get back to you ASAP. All orders made on Friday or over the weekend will be processed the following Monday. Vines of Gatwick BMW & MINI, Stephenson Way, Three Bridges, Crawley, RH10 1TN. (VAT Registration Number 529 018 646).