Z Steve,
A roots style will probably require some type of hood modification for clearance. STILLEN will most likey be using a roots sytle similar to what they used on the 350Z. That was an Eaton M62, hopefully they are using a new Eaton TVS style R1320 or an R1900 for the 370Z.
A centrifugal style won't require any hood modification. However, due to the dual side intake, a centrifugal style requires a little more hardware than you might think. GTM has a SC kit like this for the 370Z already. You may also want to check the thread about the Vortec SC as well.
~Throttle
|