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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. I am now the proud owner of a 90 TGP :)

    By GOT2B GM,   
    • 9 replies
    • 1.1k views
    • Guest
    • Guest

  2. Found a 5-speed GP

    By 90_Black_TGP,   
    • 9 replies
    • 1.3k views
    • GutlessSupreme
    • GutlessSupreme

  3. stock 3.1 n/a injectors

    By one_fast_prix,   
    • 9 replies
    • 1.7k views
    • mfewtrail
    • mfewtrail

  4. TGP gas mileage with Topgun 160 chip

    By Addicted To Boost,   
    • 9 replies
    • 1.7k views
    • krenzy
    • krenzy

  5. TGP T.V. (kickdown) cable...same as N/A with 4T60?

    By GOT2B GM,
    • 9 replies
    • 1.7k views
    • GOT2B GM
    • GOT2B GM

  6. '90 Turbo

    By ladytinny,   
    • 9 replies
    • 2k views
    • jeremy
    • jeremy

  7. 90 TGP - WHERE IS THE CRUISE MODULE and suspension issues

    By 90TURBO,   
    • 9 replies
    • 1.4k views
    • Garrett Powered
    • Garrett Powered

  8. anyone have a measured drawing of their turbo support bracket

    By stockgp,   
    • 9 replies
    • 1.1k views
    • stockgp
    • stockgp

  9. Where is the coolant temperature sensor located?

    By alex,   
    • 9 replies
    • 2.1k views
    • Dark Ride
    • Dark Ride

  10. Seat Covers

    By alex,   
    • 9 replies
    • 1.3k views
    • Garrett Powered
    • Garrett Powered

  11. blue dash mat

    By crazydriver20,   
    • 9 replies
    • 1.3k views
    • jeremy
    • jeremy

  12. Need some PMIII advice please.

    By Addicted2bass,   
    • 9 replies
    • 1.3k views
    • Addicted2bass
    • Addicted2bass

  13. ? Front Valance Question

    By TimRTGP77,   
    • 9 replies
    • 1.8k views
    • GOT2B GM
    • GOT2B GM

  14. tgp upgrades

    By dirt_igirt,   
    • 9 replies
    • 1.8k views
    • Garrett Powered
    • Garrett Powered

  15. FINALLY the TGP is fixed!

    By Addicted2bass,   
    • 9 replies
    • 1.3k views
    • Addicted2bass
    • Addicted2bass

  16. IC couplers and clamps

    By slick,   
    • 9 replies
    • 1.1k views
    • slick
    • slick

  17. I would appreciate some advice from the resident TGP experts.

    By old442man,
    • 9 replies
    • 1.2k views
    • old442man
    • old442man

  18. buying a 90 TGP tomorrow w/ a bad tranny leak

    By 383ws6,
    • 9 replies
    • 1.3k views
    • 383ws6
    • 383ws6

  19. TGP parts pricing help....

    By cb1006,   
    • 9 replies
    • 1.8k views
    • 94GPGTP
    • 94GPGTP

  20. Two new TGP problems, Powermaster, and Radio

    By EMNCFI,   
    • 9 replies
    • 1.8k views
    • EMNCFI
    • EMNCFI

  21. TGP now runs like junk and the check engine and coolant lights flash rapidly

    By jongrappin,   
    • 9 replies
    • 1.9k views
    • jongrappin
    • jongrappin

  22. Can Anybody tell me what this is.

    By Nyshadow,   
    • 9 replies
    • 2.1k views
    • Nyshadow
    • Nyshadow

  23. what do you guys see for milage?

    By Psych0matt,
    • 9 replies
    • 1.9k views
    • Addicted To Boost
    • Addicted To Boost

  24. New to the Gran Prix

    By Mags,
    • 9 replies
    • 2.3k views
    • mfewtrail
    • mfewtrail

  25. 1989 TGP rescue begins!

    By ACTdryice,   
    • 9 replies
    • 1.9k views
    • intern8tion9l
    • intern8tion9l
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