I went to mavis and they quoted me 559.99 plus tax on a new brake caliper and for my two rear wheels. I ended up paying 512 with 8% tax included. I am wondering if it's possible to get them done cheaper for my front wheels.

 

It depends what part of the country you are. I paid a total of $425 for both back brakes with rotors, labor on my 03 suburban.

 

Do it yourself.

 

labour time for an 08 impala both rear calipers, including bleeding the system is 1.8hrs
caliper costs maybe $100 each depending on the quality, door rate maybe $120/hr.... i've seen $150 hr in the city.
1.8 hours x $120hr door rate = $216 + $200 parts x 8% = $450

not that far off. shop around for door rates; call different shops. try rockauto or a1autoparts for online parts quotes

labour rate for the front calipers is the same: 1.8 hours