F10 F12 M5 M6 High Performance Software Tuning SIMON Bundle:No Thanks The GESI HO-Series Catalytic Converters

The GESI HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity

Our ECU reflash corrects the leaner stock AFR ratio allowing us to increase boost safely and reliably

your Supra MKV can rev quicker

black or carbon stainless tips

F10 F12 M5 M6 High Performance Software Tuning SIMON Bundle:No Thanks The GESI HO-Series Catalytic Converters***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*** Active Autowerke offers unparalleled performance software. Through careful remapping of the factory BMW DME tables, various elements such as ignition timing, fuel delivery, and part