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Turbo Grand Prix

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


2,050 topics in this forum

  1. another TGP getting 3x00 topend

    • 16 replies
    • 1.8k views
  2. TGP gas mileage with Topgun 160 chip

    • 9 replies
    • 1.9k views
  3. Jeff M. TGP chips 1 2

    • 33 replies
    • 3.9k views
  4. fuel pump info...

    • 4 replies
    • 1.1k views
  5. Bought a TGP, got hosed?

    • 14 replies
    • 1.6k views
  6. 1.6/1 Rocker arm questions

    • 2 replies
    • 1.1k views
  7. a pillar gauge pod

    • 11 replies
    • 2.1k views
  8. air fuel ratio gages

    • 10 replies
    • 1.2k views
  9. looking for a chip

    • 7 replies
    • 1.2k views
    • 42 replies
    • 3.8k views
  10. WTB: LG5 Exhaust Manifolds

    • 19 replies
    • 3k views
  11. Need some SERIOUS HELP with my TURBO!

    • 7 replies
    • 1.2k views
  12. Lumina is running poorly.

    • 15 replies
    • 1.9k views
  13. new member-90 TGP

    • 14 replies
    • 1.6k views
    • 2 replies
    • 1k views
  14. I want a coupe again.

    • 14 replies
    • 1.7k views
    • 6 replies
    • 2.8k views
  15. gpt

    • 7 replies
    • 1.7k views
  16. intercoolers!?

    • 24 replies
    • 2.4k views
  17. ohm tested my injectors today....some questions

    • 18 replies
    • 1.9k views
  18. Thought I blew up the STE

    • 19 replies
    • 2.3k views
  19. I Think I Fried My ECM

    • 2 replies
    • 1.1k views
  20. Stock setting on waste gate for TGP?

    • 4 replies
    • 1.1k views
  21. N.O.S. TGP oil pan?

    • 4 replies
    • 1.7k views
  22. turbo Q....quick one! 1 2

    • 39 replies
    • 4k views
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