The SRM850 B9 S4/S5 Hybrid Turbo utilizes a GTX3582R Gen 2 ball bearing cartridge and precision machining of the turbine housing and compressor cover to retain OE fitment. PTFE stainless steel braided line package included with the turbo. Core return program allows you to receive your new turbo prior to removing yours. Less than +1000rpm lag increase VS. OEM turbo while doubling the output of the 3.0T. Contact us about available custom tuning for your big power B9.