Hey. What's the good estimate price for installing 4 wheel big brake kit? How long does it take?

 

that's an easy DIY... if you've never done brakes before, then figure an hour per corner...

If you are not mechanically inclined and/or don't want to do the work yourself, a shop could do it in about two hours, so figure their labor rate x 2 for a cost.

I've swapped Stoptechs on Audi A4s and S4s so many times, I could do it with my eyes shut. A front swap on an S4 (OEM to Stoptech 332x32) takes about an hour, not including flushing and bleeding the fluid, which adds about another 30-45 minutes.

PeteH