RK Titanium BMW M5 | M6 Titanium Charge Pipes (F10/F06/F12/F13)Introducing the Charge Pipe Kit for the BMW F10 M5 M6! This pie cut version Titanium charge pipe kit is made from high quality CP 1 grade Material. It is completely designed and hand built in the USA! The design is simple and effective. The Charge Pipes maximize their inlet diameter to match the charge air cooler inlets. All of this is done with smooth welds and transitions. This creates maximum flow and simple installation! Of course their tig welded