Weistec Stage 3 Supercharger E63 AMG package......
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2007 AMG E63 Weistec S3, 2003 Porsche GT2 with 1375 rwhp
For the stage 3, and possibly for stage 1 and 2, you have to send the ECU to Weistec for programming. The tune is not one you can load on with a My Genius box.