We get asked quite allot for this so we have now added it to our FAQ.

The image above shows the back of the GTi-R ECU plug, i.e. the side the wires go into it. Please make sure that you are viewing this from this angle and correct way up if you intend to make any changes to this.

The RPM signal output shown above is a suitable for most RPM displays. Provided you have power ground and this signal you should have no problems and everything should be fine.

Please note: 

Please take care if your going to make any changes to the wiring on your car and understand that this information is provided in good faith and we can accept no responsibility for any accidents, errors or inaccuracies should you decide to follow any of the information provided on this site.