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News and Information
Battleborn Quattro

We will be closed from Thursday 10/20 through Monday 10/24 for the Battleborn Quattro event in Nevada. orders placed online during this time will not ship until we return.

Thanks for your patience!

Custom Urs4/UrS6 Motronic tuning

We are pleased to announce we now have the capability to custom tune your UrS4 / UrS6 ecu real-time for any hardware combination you may have in terms of turbo/injectors/etc. Contact us for details!
United Motorsport Software Now Available


EFI Express now offers the full line of United Motorsports tuning products.