With this kit. does the EVERYTHING come with it that you need. or will i have to by extra things. and im talking does it come with everything. like nuts bolts connectors whatever you need to to install it. and do i HAVE to get exhaust. i hate the bumble bee exhaust. but i kno i might HAVE to have it. but is there ways to get around it without sacrificing hp. so give me your advice on what i will need to get the most out of a turbo. and im on a budget so dont suggest anything that isnt that necessary and will break me.