Originally Posted by tom @ eas
Some go this route. the GP Thunder 7500K and coding (brighter AEs) make a big improvement over stock AEs - we've done this in-house for a number of M3 owners that aren't ready to pull the trigger on a LED solution.
For those looking for the brightest/OEM-type solution, the AIBs are the way to go. Since we manufacture them in-house, they're always in stock.
Agreed I have them and love it!