I did this mod and it works great so everyone should really listen up to what I have to say. I made the mistakes for you, and I'm not making **** up.

#1. I did not file any pins down, everything was plug and play

#2. They fit perfectly.

#3. You don't need load resistors or whatever they are called for the brake lights or the backup lights - only the turn signals - and again, that is personal preference whether you want to use them or not. All they do is make your turn signals flash at the normal rate. Without them, after installing the Matrix bulbs, the turn signals flash twice as fast. PERSONALLY, I like them flashing twice as fast - it gets peoples attention faster - it's NOT illegal - and it looks sharp because it's a FASTER, BRIGHTER flash than you see in the majority of cars on the road. And on top of that, it costs nothing. I sure as hell wouldn't pay good money to have them flash the regular rate.

#4. The bulbs around the side do light up the entire housing. Pretty damn bright too.

#5. The only change I would possibly make is to put white ones in the brake lights.. It might make it look better... you really don't need RED light bulbs considering the lense is already red. So I think white ones might look even brighter and better.