BAP will be an extra item purchase.
The tune is the critical item to get the best of the Magnuson with your bolt ons.
I went with JRE racing, Ted Jannetty and his crew, I did the install myself and then did the datalogging and remote tuning with Ted and it went extremely well and could not be happier. JRE will get you a great price on the Maggie kit and BAP if you need it as well as the after installation support such as tuning which again is critical.
The injectors Maggie kit will come with everything that you need to bolt it onto the car and go, again, get a custom tune after installation, do not use the canned tune that comes with the kit.
2010 SSRS, RJTC, L99, Maggie 2300 SC, 3.4" pulley, Roto-Fab CAI, Dynatech Supermaxx LT headers, Dynatech High Flow cats, Corsa Cat back exhaust, Elite Engineering catch can, MSD wires and Jannetty custom tune, JRE custom diff w/ posi mod, 3.91 LPE gears, Pfaht trailing arms, Pfaht trailing arm and Diff bushings, drop springs and sport sway bars front and back, Fesler dual guage pillar pod w/ AM Cobalt Boost and A/F guages.
LS3 conversion, LPE dual fuel pump, Upgraded injectors, JRE Maggie Stage 2 upgrade kit, JRE smooth Idle Blower cam. Looking for 700 RWHP in the end.