Installing new master brake cylinder

usually held on w two bolts. Dont forget to bench bleed it during installation (either physically on your bench or after you mount it to the booster).

Yes, bench bleedings need to be done.

I bought a kit that has some plastic hose and a few plastic fittings. Only cost $4 and it allows me to just mount the cylinder and then pump the pedal a few times to bleed the cylinder.

You'll want to bleed your lines after. Make sure you have a friend with you to do it, otherwise you'll need a brake bleeder kit, or a vacum pump with catch canister. The vacum pump is my favorite method.. no pedal pumping and since there is a catch canister, no wasted fluid or mess.