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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. factory boost gauge accuracy?

    • 13 replies
    • 2.4k views
  2. Anyone here installed a wideband o2 sensor using the stock ECM and tuning?

    • 5 replies
    • 2.4k views
  3. Snagged a TGP model on eBay

    • 20 replies
    • 2.4k views
  4. TGP power on acceleration 1 2

    • 26 replies
    • 2.4k views
  5. Brake pedal drawing too much current.

    • 12 replies
    • 2.4k views
  6. I just bought a 90 tgp and dont know much about em yet. 1 2

    • 28 replies
    • 2.4k views
  7. Battery terminals on a TGP 1 2

    • 31 replies
    • 2.4k views
  8. Blow Off Valve Location?

    • 17 replies
    • 2.4k views
  9. Exhaust Manifolds...TGP

    • 18 replies
    • 2.4k views
  10. Looking to turbo my 96 GP 3.1...need help

    • 13 replies
    • 2.4k views
  11. front clip swapp 1 2

    • 27 replies
    • 2.4k views
  12. ALDL Scanning software

    • 6 replies
    • 2.4k views
  13. new tgp owner 1 2

    • 26 replies
    • 2.4k views
  14. PCV question for tgp owners

    • 20 replies
    • 2.4k views
  15. Intercooler pics

    • 24 replies
    • 2.4k views
  16. looking for cheapest upgrades first. can someone help

    • 17 replies
    • 2.4k views
  17. Using seafoam on a tgp 1 2

    • 31 replies
    • 2.4k views
  18. Possible TGP Part Out.

    • 19 replies
    • 2.4k views
  19. Cam & water pump pulley question

    • 7 replies
    • 2.3k views
  20. intercoolers!?

    • 24 replies
    • 2.3k views
  21. bad blowoff valve?

    • 16 replies
    • 2.3k views
  22. Vacuum block clip

    • 4 replies
    • 2.3k views
  23. This is a lot of work!

    • 23 replies
    • 2.3k views
  24. Sorry, don't get on here much!

    • 14 replies
    • 2.3k views
  25. TGP secondary cooling fan motor

    • 15 replies
    • 2.3k views
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