BMW B58 High Performance Software Tuning G-chassis M340i M440i M240i 540i 640i 740i X3M40i E70 Key Features:-Improved Gas Mileage-Special tuning

Key Features:-Improved Gas Mileage-Special tuning for Sport Cams (MS45)-Sportier throttle response- Available for 91-93 octane-Smoother pulls through RPM band-Increase RPM Limiter for Manual Cars-15 HP gain & 12 ft lbs of torque

All Active Autowerke exhausts are designed and manufactured for performance

- 1-piece and 2-piece rotor assemblies

INSTALLATION NOTE: If you are using this rear exhaust with an Active Autowerke resonated midpipe

These tips provide all the visual aggressiveness of our Active Autowerke G8X Rear Exhaust so that you can upgrade at your leisure

BMW B58 High Performance Software Tuning G-chassis M340i M440i M240i 540i 640i 740i X3M40i E70 Key Features:-Improved Gas Mileage-Special tuningNOTE: FOR ALL BMW CARS MANUFACTURED ON OR AFTER 6 2020, THE ECU IS LOCKED AND CURRENTLY CAN ONLY BE UNLOCKED BY SENDING TO FEMTO DIRECTLY. ONCE THE ECU IS UNLOCKED, WE CAN TUNE AS NORMAL. ***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke. com and you can fax it to us at (305) 253 8921***