Lectric Limited claims the reproduction T3s are brighter than originals. I have no firsthand experience with them.
https://www.lectriclimited.com/catal.../category/732/
From the tech notes tab:
"In order to manufacture our T-3 bulbs, we had to meet the current federal lighting standards. Consequently, our T-3 bulbs are brighter than the original bulbs. They do not project the typical dim, yellow cast as the original bulbs did which lead to difficult night time driving. (For those who are concerned about having your car judged, the level of bulb "brightness" is not a judging criteria.) If you were to replace only one bulb, you would instantly notice the brightness difference when placed side-by-side to your original bulb."