FYI, the PIAA Extreme Whites are a bit whiter light than the Supers and light up the road a bit better. If you're already paying the outrageous PIAA price you may as well drop the extra $5 for the Xtremes. I had the Supers and just recently switched and there is a noticeable difference.
BTW, I got them here.
Autobulbdepot.com
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ChuckH
"Every morning when I wake up I know it's not going to get any better 'til I go back to sleep again!" Al Bundy