I've Installed Hundreds Of These Kits... No Exagertation. Most Of These Companies Will Be Sub Companies Of Other Companies And So On. So You Think Your Buying A Brand And It Comes In Something Else. Also They Say Your Buying A 10k And Really It's A 6 - Or 8k. Another Way To Try And Get You To Buy Their Product. Find A Company That Has Good Reviews. You'll Want To Spend Around 100 Bucks. You Can Find Nice German Engineered Slim Ballast For Around That Price. My Personal Fav Is 12k. It's A Happy Medium. We Have 12k's In All Of Our Cars. If You Spend More That's Really Up To You. Hope That Helps.
Anthony