I used the 5000K Morimoto 3Five in my TL. I thought they were dim for the first couple weeks. They need some time to break in. After a few hours of use they were brighter than my OEM Osrams.

 

I replaced the factory Philips 4300K with a pair of Philips 6000K
Although 6000k gives out less lumens than the 4300K, most noticeably when driving on curvy parkway with no roadway lights, but the color looks way better than the 4300K bulbs