Don't bother buying the one with the stepper motors. It doesn't make any sense to do so. They don't even work in our gauge clusters. Also buyer beware of ebay LEDs. I've bought my fair share of them and they don't last anywhere close to what an average led should. I've actually bought a set of white LEDs from eBay and they've had slightly different, yet noticable colour variations.
You could just buy these and use whatever 194 bulbs that you want.
http://www.ebay.com/itm/6pcs-168-194...e83 6&vxp=mtr