This is a combination turbo timer/shift light that also has voltage, A/F, and RPM functions. Originally $99 new, $75 obo.

Pics
http://i161.photobucket.com/albums/t227/gstoddard/Stuff/CIMG4239.jpg

http://i161.photobucket.com/albums/t227/gstoddard/Stuff/CIMG4240.jpg

Link for full specs here:
http://www.arkdesign-us.com/rst-rev-shift-timer

Shipping is additional but shouldn't be much as it is light.

how does it hook up

Technical Support page

http://www.arkdesign-us.com/technical-support

Scroll down until you see Download RST User Manual (http://www.scionlife.com/public_downloads/rst-manual-v14.pdf).

So is this thing plug n' play or do you have to splice it in? The instruction manual isn't clear.

You can either order a T-harness for the ignition lines, or splice them in. The other lines need to be tapped into seperately. It is not plug-n-play but is not difficult to hook up either.

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