I've been running the NS1 for about seven years. It is the real deal. It is nice because of the ability to customize five screens you can simply scroll through. It also has a data logging feature that allows you to look back at a long list of items put out by the ECU.
It is a long list.
Unfortunately, there is not an easy way to use the gauge with the Catalyst hood that has a sport gauge. That hood has a shallow height opening and the sport gauge uses a bezel mount with two screws beside the gauge. The opening would need fairly major modification and you would still have the holes beside the base mount.
Last season, some of the Catalyst sled used the old style gauges. I had one and was able to make the NS1 fit with that hood. It's not the easiest process and you need to replace the storage compartment cover. I used a Tread mount cover for the storage compartment.
Maybe a pic can help explain.
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I did not dig into the process of mounting one with the sport gauge opening too deeply. I told my dealer I'd take one of their customer's med. green hoods from last year with a round gauge opening. (G8 installation looks cleaner with a new custom fit opening.) So far, no bueno on finding someone willing to part with one of the hoods.
I have a G8 setup as well. The graphics are better than the NS1 and the G8 has more functions on the toggle. The G8 is not quite as functional with customization and does not do data logging. It's a bummer that the NS1 is so hard to mount with the sport gauge hood. With my setup on the old round hole hood, it's in a better location for visibility than any factory option. That's a big deal.
Seated view.
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I move the items around on the customized screens and put my important stuff on the top row. I also use the data logging quite a bit. It helps a ton with fine tuning and troubleshooting.