I want a Brazilian butt lift. 1800cc to 2000cc on each side. Is it too much 1800 cc to 2000cc? (photos)

1000-1700 cc each buttock is a good estimate.  Because of the abdominal skin laxity, you would need andominoplasty 4-6 months later.  Please see the referenced sites for many before and afters.

Hello dear!
Thanks for the pictures and provided information as well.
Based on your photos, you are a great candidate for liposuction with a BBL and a tummy tuck, to give you a nice tight tummy and to get rid of the extra skin, and I think you'll get very good results. To determine the right amount of CC's to transfer in a BBL, an in-person consultation is in order, because it depends on a number of factors.
Liposuction allows your plastic surgeon to transform your entire shape. You can improve your waist, back and flanks, and of course your buttock, to give you a beautiful heart shape, along with the tummy tuck.
In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 33 or less.
l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)

To have 1800-2000 cc of fat transfer for each Buttock is unrealistic. The transferred fat need to be in contact with live tissue to acquire new blood supply and survive. Otherwise you will loose the volume very fast and have fat absorption and fat necrosis.