H&R and Eibachs are the major brand in the industry. Both are reliable and comfortable, but I have to choose H&R over Eibach, since it's lower and still comfortable. If you have been lowering honda/acura cars for awhile, the lexus is basically another day, but a little more work. Must have a good spring compressor for this one. Usually, shops charge about $80-$150 to lower a car. Turbo kits, I would go to SP Engineering in So. California. Best shop around, did my friend's supra there. Awesome job!
-Jay