I had a single Defi Link in my old WRX. It was a 60mm boost gauge in the Defi cup mounted in front of the clock. I had an aftermarket headunit installed as well, so I mounted the V2 controller in a Forrester pocket w/door. Wiring was very easy, especially since I had the power wires marked with the headunit. The controls are very intuitive and easy to operate. It is a lot more user friendly than my brother's Greddy warning meter.
I loved my Defi.
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