I recommend the 3smd with heatsinks on them. a few bucks more on ebay but worth it. And the 6 smd's are wayyyy to bright IMO.

 

I recomend the 3 leds per bulb it's bright enough and also get the error code leds, it has built in resistors so they won't flicker. I had regular leds on and they flickered like crazy but once I got the error code ones it was perfect, check IJDTOY site for leds for euros they have alot to choose from, that's where I got mine.