How much should I be looking at to install a stoptech BBk on a coupe?

2.5-3 hours worth of time.

So then a $500 labor fee would be a little high

I couldn't tell you. Each shop is different in their operations so it's difficult to tell.

2.5 -3 hours is for only one axle. A 4 wheel kit takes 4-5 hours. One of our top resellers charges $250/axle so it's not exactly out of line.

i got quoted 4.5 hours - F&R 14" stoptech BBK.

Sounds about right then, Coconut Creek Infiniti charges $105/hr for labor. Is there any reason you dont want to install them yourself? My first time was this summer replacing my Brembo rotors and pads and found it pretty easy to do, just took a few hours. Just need a good jack and a pair of jack stands. Much cheaper than 5 hrs labor, and I'm sure youll find more mods to use them on

omg, if you can do it yourself, please do. the price that shops charge for this is insane. if you diy, you'll understand that it's quite a cake job.

I'm doin mine myself.

should be around 400-500 range

Not a difficult install. Read the directions ahead of time, ask questions here, then knock it out yourself. Well worth the effort in $$ saved but you get to learn something and have pride in doing it yourself.

If you do them yourself, just make sure you follow the bleeding instructions correctly, and make sure you double check all your bolts. Don't compromise your life or those you love.