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Tunnelrat Electronics

Welcome to TunnelRat Electronics!


We were first to bring a reliable 500k modified ELM327 to the modifying community several years ago and thanks to your recommendations on forums around the globe we are still the number one choice for a device that works flawlessly with Forscan, Elmconfig, Focccus and many more.
What we do...

We source the highest quality ELM327 compatible OBD readers availaible
then we modify them to make them even better!

We dismantle the device, check and upgrade the circuit board, then we add a MS-HS CAN switch or electronic relay (depending on model). 

Finally the unit is tested and a new custom label added.

As we use multiple suppliers, our units may look slightly different to those pictured but the functions and compatibility are always the same.

Even if you do not own a Ford, our modified ELM327 will still work with any ELM327 compatible software on ANY vehicle fitted with an OBD port (including the software which causes all cheap Chinese ELM327's to fail).

All of our products come with a 12 month no quibble warrenty and we will replace any defective device up to 12 months after purchase (upon receipt of the defective device).

We guarentee that you will not find a better ELM327 device for your vehicle!

So, if you just need to diagnose faults, or you need to program new injectors, activate a towbar, enable auto-locking or reprogram the instrument cluster then you will need our modified USB ELM327 (please check software for Ford model compatibility).

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