We upgraded the pilot’s M3 with the necessary mods all M3s should have: Including: E92 M3 Active Autowerke Mid-Pipes Billy Boat Exhaust System Active Autowerke E92 M3 Performance Software Active Autowerke E9X M3 Signature Pulley System A shot of the stock midpipes: Close up of the power-robbing Catalysts: Shot of AA midpipes installed: Notes the resonators - Read More -