Big Brake Spec help requested
 

I see lots of big brake kits on Ebay. Many 4 and 6 pistons are cheap. Can they be outfitted to an E53 2001 with 20 inch 4.6 wheels? I would love to buy a pair in the $400- $600 complete installed price range as a Mod for front and under $1000 w pads installed for all 4's. I am looking for information for technically mechanically minded of those here at X5world. Send me a PM please. Thx in advance!!