We at Addict Motorsport Design are proud to announce the latest in high-performance turbo technology for the Audi 2.7T platform...The XR770 turbo kit designed & built by TiAl Sport and Xona Rotor made exclusively for us at Addict Motorsport Design. XONA Rotor Xona Rotor has implemented a proprietary variable-preload angular contact ball bearing system to its XR product line. By providing increased preload when needed and less when it isn’t, bearing life is extended. Thrust, o