OEM+ means you are taking OEM to the next level.
You used OEM products on a car that didn't have it before and made it look good, instead of going out and buying a $19.99 kit off the shelf at Wal-Mart.
6000k is not crisp white light... its got some purple in it and the output won't be good.
5000k is going to be your best bet for trying to get "crisp white" light while also having decent output.
Tom's Tune // CFM 67 TB // VF R&DrEM // Steeda STS // Boss 302 SKnob // Eibach Pro-Kit // KYB AGX
CFM HFC & Flex // MASSIVE STB // Hella Xenon Euro-Spec HIDs // EuroStar LED Tails