You have two options with the MDX for "white" light, since Acura does not offer the MDX with HIDs.
1. You can install a true Xenon HID kit for around $500 from hidkits.com. There are other threads that discuss this. Do a search on HID kit.
2. You can install a cheaper alternative that has the "white" light but at a lower price. These are "white" halogens. Many have tried the ones from www.platinumprices.net, and they run for $59.95 with a 3 year warranty.
Just summarizing the many discussions on this board on HIDs...
1. You can install a true Xenon HID kit for around $500 from hidkits.com. There are other threads that discuss this. Do a search on HID kit.
2. You can install a cheaper alternative that has the "white" light but at a lower price. These are "white" halogens. Many have tried the ones from www.platinumprices.net, and they run for $59.95 with a 3 year warranty.
Just summarizing the many discussions on this board on HIDs...