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Turbo Grand Prix

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


2,047 topics in this forum

  1. PMIII Accumulators

    • 2 replies
    • 986 views
  2. PMIII Noises

    • 9 replies
    • 1.9k views
  3. PMIII overflowing when depressurizing.

    • 3 replies
    • 832 views
  4. PMIII parts availability

    • 12 replies
    • 3.4k views
  5. PMIII Parts List

    • 5 replies
    • 2.1k views
  6. PMIII pressure switch update

    • 0 replies
    • 854 views
    • 0 replies
    • 1k views
  7. Ported and Polished heads for a TGP

    • 4 replies
    • 988 views
  8. porting the intake

    • 0 replies
    • 892 views
  9. Porting the intake.

    • 4 replies
    • 1.2k views
  10. porting the TB

    • 2 replies
    • 841 views
  11. Positive Evolution of the TGP Message Forum, Great Job!

    • 3 replies
    • 917 views
    • 5 replies
    • 1k views
  12. Possible option for rebuilding the PMIII

    • 5 replies
    • 1.3k views
  13. Possible Purchase of STE

    • 18 replies
    • 2.2k views
  14. Possible TGP Part Out.

    • 19 replies
    • 2.4k views
  15. POST the best pic of your/ a tgp

    • 19 replies
    • 2.1k views
  16. Post your dyno charts. & Boost quest.?

    • 7 replies
    • 1.7k views
  17. Post your VIN + build date.

    • 4 replies
    • 1.7k views
  18. Posting my for sale thread all over the forum.

    • 1 reply
    • 1k views
  19. Power Antenna

    • 12 replies
    • 1.7k views
  20. Powermaster III ABS Unit for Sale

    • 0 replies
    • 1.5k views
  21. Powermaster III grommet

    • 4 replies
    • 1.2k views
  22. powermaster lll motor spins backwards

    • 2 replies
    • 1.3k views
  23. Powermaster Pressure Switch Sources?

    • 4 replies
    • 1.7k views
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