Active Autowerke E39 Performance Software - 540i 335 GESi proprietary precious metal loading

GESi proprietary precious metal loading technology ensures greatly reduced emissions

This muffler spawns a sound that is much more assertive than the stock exhaust system

Mark Tarr from Victoria

Compatible with new or used antifreeze (including DEX-COOLTM and long-life versions) to improve the heat transfer of ethylene and propylene glycol systems

The end result is more power

Active Autowerke E39 Performance Software - 540i 335 GESi proprietary precious metal loading***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