News and Information
Closed for a few days

EFI Express will be closed from Friday 1/17 through Monday 1/20. Orders placed during this time will ship when we return on Tuesday 1/21. 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.