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Turbo Grand Prix

This forum is for enthusiasts of the rare 1989-90 Pontiac Grand Prix Turbo.


2,051 topics in this forum

  1. Any clues?

    • 15 replies
    • 2.6k views
  2. Vacuum brake swap.

    • 4 replies
    • 2.6k views
  3. TGP out of storage and has a couple of issues

    • 10 replies
    • 2.6k views
  4. Stock Boost Gauge?

    • 8 replies
    • 2.6k views
  5. wideband problem

    • 13 replies
    • 2.6k views
    • 15 replies
    • 2.6k views
  6. check out this dyno pull

    • 8 replies
    • 2.6k views
  7. TGP Code Size Data

    • 10 replies
    • 2.6k views
  8. 4T60 vs 4T60-E

    • 20 replies
    • 2.6k views
  9. Can anyone identify this chip??

    • 14 replies
    • 2.6k views
  10. lowering springs

    • 1 reply
    • 2.6k views
  11. computer cal. for 3-bar MAP

    • 24 replies
    • 2.6k views
  12. group buy- 3" stainless downpipes

    • 6 replies
    • 2.6k views
  13. Launch control?

    • 1 reply
    • 2.6k views
  14. Dads TGP running like crap, can't figure out whats wrong!?!?

    • 20 replies
    • 2.6k views
  15. Razzi front ground effects!!!

    • 21 replies
    • 2.5k views
  16. Thought I blew up the STE

    • 19 replies
    • 2.5k views
  17. auto tranny

    • 1 reply
    • 2.5k views
  18. TGP/5-speed in an L body?

    • 8 replies
    • 2.5k views
  19. New TGP, mine all mine!!!

    • 23 replies
    • 2.5k views
  20. Abrupt Stops - Kills it.. TPS Problem?

    • 20 replies
    • 2.5k views
  21. Gen. 1 W-Body Chassis vs. Gen. 2 W-Body Chassis

    • 12 replies
    • 2.5k views
  22. Craigslist find 1990 GP ASC Mclaren Turbo Chicago area 6,700 Miles

    • 1 reply
    • 2.5k views
  23. Brought STE in to get tranny fixed

    • 11 replies
    • 2.5k views
  24. GM part # for a TGP Oil Pressure Sending Unit?

    • 2 replies
    • 2.5k views
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