IE 3.0T TFSI 207MM Crank Pulley & Damper Upgrade Kit | Fits Audi B8/B8.5 S4, S5, Q5, SQ5 & C7 A6, A7

LEADING FEATURES 207mm "dual pulley ratio" crank pulley upgrade Replaces crank pulley and engine damper Increases supercharger RPM by 27.6% over stock Higher boost levels deliver up to 548HP with matching tune No need to press on an upper supercharger pulley Lightweight design for faster & easier engine revs USA in-house designed and manufactured CNC machined from 6061-T6 aluminum Black anodized finished for superior protection and looks Laser-etched logo and alignment marks for easy install Includes high-strength bolts and proper-sized SC belt Requires stage 2 dual pulley ECU tune ONE PULLEY - DUAL PULLEY POWER This 207mm crank pulley delivers a supercharger ratio similar to a traditional dual pulley setup that uses a combined smaller 57.5mm supercharger pulley with a larger 188mm crank pulley. This pulley allows the use of a dual pulley ECU tune without the need to purchase multiple pulleys and press off/on a new supercharger pulley for a faster