The Northstar throttle body kit from ZZPerformance allows you to bolt a 2000+ Northstar throttle body onto your supercharged Series II 3800. On any positive displacement supercharger, like the M90 used on the 3800, removing intake restrictions and increasing flow goes a long way when it comes to making more power. The Northstar measures 75mm at the blower opening, making it the largest and best flowing direct bolt on option for Gen 3 and Gen 5 M90 superchargers. 

This modification is recommended for those with ported inlet Gen 3 blowers, stock Gen 5 blowers or ported Gen 5 blowers. No other company offers such a good looking, perfect fitting, or as complete of a solution for your 3800.

*PCM programming or AFC needed for the different MAF.

Base kit includes:

• CNC machined adapter plate w/screw
• MAF adapter harness (with IAT)
• TPS Adapter harness
• Custom throttle cable bracket that maintains cruise control
• Silicone Coupler
• 2 Clamps for Coupler

*Will not work in drive-by-wire applications, for example the '04+ Grand Prix supercharged.