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Northstar Throttle Body Kit

The Northstar throttle body kit from ZZPerformance allows you to bolt a 2000+ Northstar throttle body onto your supercharged Series II 3800.
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.

    Customer Reviews
    4.9 Based on 17 Reviews
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    United States United States
    Great piece, but only one gripe

    Got this installed on my 01 GTP today. I recently purchased the car and it had a dead MAF sensor since. After I installed this kit with a junk yard throttle body and MAF from a donor cadillac, the throttle response was amazingly fast. I am not sure how the throttle response compares to a stock SC 3.8L with a good MAF, but I am very impressed. I understand the kit is primarily for upgraded engines over stock, but that will come later. My only gripe is that my intake has a locating pin for the throttle body, and the adapter plate has no provision for it. It would not come out and I wound up dremelling the pin off as gently as I could and adding some RTV silicone to fill the imperfections.

    Justin T.
    United States United States
    Great fitment easy instal

    Great machining, bolted right up. All included hardware was right sized and good quality. Would recommend! Throttle response increased.

    ZZPerformance Northstar Throttle Body Kit Review
    Richard M.
    United States United States
    ZZPerformance model, Go Fast Not Broke

    Northstar Throttle Body Kit, I have not had the opportunity to put it on my engine yet, but I can say this. The product is worth the money and the quality is great. They are true to their model of Go Fast Not Broke. The prices are far below other companies. Thanks ZZPerformance.

    United States United States
    Very good kit

    Has everything you need. The only thing I had to modify was the L bracket for the throttle cables. The base comes very close to the lip on the throttle body. I could not get the coupler on. No biggy, just had to do some clearancing with a cut off wheel on the bracket and bobs your uncle. I do understand the harness adapters, plug and play make it easy for the common person. But I wish I could of had an option to get pre de-pinned connectors so I can have a seamless harness. I could always de-pin these and shorten the wires in the future. All in all great kit.

    ZZPerformance Northstar Throttle Body Kit Review
    United States United States
    N* tb kit

    Looks great ,fit up very nice. Hope to get some nice gains!