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News and Information

EFI Express will be closed from Thursday March 23rd through Tuesday March 28th. Any orders placed online during this time will ship when we return on Wednesday March 29th. 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.