https://www.turbosystems.info/product-page/audi-seat-volkswagen-2-0-tfsi-tsi-is38-tsx-upgrade-turbocharger
stage 1 version
Turbosystems upgrade turbocharger for Audi / Seat / Volkswagen 2.0 TSX1 TFSI/TSI features:
dual ceramic ball bearing;
reinfrced 51/63 mm machined from the solid compressor wheel;
enlarged 53/50 mm turbine wheel;
antisurge cmpressor housing
balanced n VSR;
Power range: 500+ HP
I installed turbo system TSX1 version (500hp max), spool with 3000 peak 3400, boost 1.8 bar and angle 10, 93ron 465hp, I think to add boost to 1.85 and raise AFR to 12.2