[M-type]

well, right now, in your case a 4-2-1 cause your power is in the lower rpms. The vtech engines gets a big boost with 4-1 at high rpms. To tell you the truth, integras have one of the best stock exhaust manifolds, so unless you boost it, you dont need to get headers. If you are absolutely sure about the supercharger, get the 4-1 which will help you out in hi-flow situations. If you do get the sc, i suggest getting a light weight fly wheel and a stronger clutch, you can 'chirp' going from 2nd to 3rd.