MAMBA Turbo Upgrade Kit / 9-6 BorgWarner B03G 18559700021 Audi TT RS RS3 2.5T Reverse Turbo compressor wheel + Turbine wheel + Heavy Duty Repair Kit. Compressor wheel & turbine wheel Balanced by Schenck already. CHRA (complete core) is recommend to be balanced again when you assemble them all. Upgrade repair kit for 17 AUDI TT RS 2.5L TFSI 8S with Borgwarner 18559700017, 18559700021, 18559700031, 18559700036, 07K145701M 07K145701L, 07K145701J, 07K145701H Turbocharger. 2017 Audi TT RS 2.5L TFSI (8S) Engine DAZA R5 294KW / 400HP. 2014 RS3 8V FACELIFT DAZA R5. Factory compressor and ...