Thinking of changing out my OEM low beam bulbs and replacing them with a brighter/whiter LED bulbs. Read about the silver ultra and the PIAA extreme white 55/w bulbs, both sound like what I'm looking for. Don't do much night riding want mostly for visability purposes. Would love some input /ideas on what some of you are using. My main question is can I change out only the low beam bulbs and leave the high oem bulbs in place or do I have to change them all out at the same time ?