Hey Lexus4Life
I've got those bulbs installed in my car just a few days ago. I own an IS300 though. I wouldn't call myself a car guy, hell, I'm actually just a computer dood. I was pretty afraid of doing anything to the car, especially since it's my parents. heheh, I don't know if they noticed the difference yet, haven't said anything. Looks definitely better though!
Anyway, installing the rear signals were relatively easy, all I did was pop the plugs, unscrew, lift our the rear signals, twisted the signal housing and replaced the bulb.
The front was much more difficult. I had to ask these guys on another forum how to install those cause getting to the front was retardedily difficult. I had my first removal of front bumper and stuff experience there. Learned quite a bit about ripping the front portion of my car apart.
Anyway, before I started asking for help I proded around a bit, front signals were impossible to prod around. But the rear signals I could do on my own.
I have a friend that owns an older ES, I think 2000/2001. I can take a look at his front signals to see if it's easy.