Want to buy an diagnostic interface / tool for my 02 WRX and would like some advice on which one is best - any recommendations are appreciated, would also be good if you could mention who / where to buy it from

Cheers

 

Why buy, when you can download Enginuity for free...?

Enginuity - Open Source ECU Tuning, Reflashing and Logging | Enginuity / Enginuity

You just need an OBDII - USB cable (£<30) and a laptop..

Works very well..

 

thought you also needed an interface?

 

Nope, don't be fooled into paying for something you don't need..!