I just completed rewiring my 54 with an EZ wire harness. The kit itself is very good but the instructions left something to be desired in certain areas. It could be detailed out a bit better. Fortunately their tech support is quite capable but sometimes difficult to reach as he is probably providing those missing details to other customers. I would use one of theirs again. Can't beat the price.

I also used their sister company Dolphin Gauges and while the product is good the installation instructions had some errors in the color coding and left some details out. Again their tech guy was able to set me straight.