ZZP Performance CNC Ported Inlet/Outlet of a Gen 3 Eaton M90. Inlet is ported to 78MM to allow for install of the 75MM Northstar Throttle Body. This supercharger also has a ZZP Modular Pulley System Hub installed as well. If you were to swap this supercharger for a stock Gen 3 you should gain roughly +20-30 HP/Torque on a 3800 along with lower IATs and reduced Knock Retard (KR). This should work on 1997-2003 Grand Prix/Buick Regal GS/Bonneville SSEI/Park Avenue/Impala SS/Monte Carlo SS.
