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  1. exhaust valve wont open with jb4

    just to make it clear - i start the car, let it worm up i press the BC button and hold it, then i turn the lever up or down according to what i want? open or close? and how i get both flash?
  2. exhaust valve wont open with jb4

    im sorry, i forgot to say but i also did the update to v22 3-4 days ago yesterday with all my checking i went back to v20 but the problem didnt solve
  3. exhaust valve wont open with jb4

    i saved you a trip to the shop ;) the problem is 100% in the JB4 i guess i can use the BC button as a temporary fix but thats really not a solution you need to use the BC button every time you start the car ? its so weird, everything worked great for me and suddenly stoped working i hope the...
  4. Exhaust flap closes JB4

    any updates on this problem?
  5. exhaust valve wont open with jb4

    thank you for the fast replay, i actually like the exhaust valve and like to control the sound volume. this post sounds very similar to my problem, but thats weird because everything worked amazing until today and the coding i did. i never had to manually open or close the valve i didnt even...
  6. exhaust valve wont open with jb4

    hello i need your help friends i have a 2021 supra 3.0 gr, i have been using jb4 for almost a month now with zero problems on map 2 today i code the car to open the sport + function and went out for a nice back road drive from the start i notice a very weird sound from my exhaust after i did...
  7. Brake upgrade options 2020

    bringing this back from the dead im try to get the most i can from the oem brakes - hel brake lines - motul rbf 600 fluid - verus cooling kit(expensive but if i go big in future i can still use it). cant decide on a brake pad(hard street use, not track) any thoughts?
  8. Recommended Alignment Settings?

    thank you for the fast answer yes street use, curvy fast back roads, maybe 1-2 track days a year. for the front i understand for the back, what is slight(in mm) ? im asking because i dont know what is the oem specs
  9. Recommended Alignment Settings?

    bump for this i have a 2021 and would like to get recommended specs for street driven car. maybe try to fix the bumpsteer a bit
  10. 2021 3.0 Supra (Jb4) vs 2018 M4 Comp (tuned, DCT)

    your next step is bigger turbo i think you really close to the max on stock turbo
  11. how the cooling system works?

    yes i want when you can, please share
  12. how the cooling system works?

    thanks for the great info i will see and read everything
  13. how the cooling system works?

    still trying to get more info on how the cooling system works
  14. how the cooling system works?

    ok, so no, i will change only the big heat exchanger but i didnt understand the rest of the comment about the intake manifold please explain when you have time
  15. 2021 3.0 Supra (Jb4) vs 2018 M4 Comp (tuned, DCT)

    thsts low 7 100-200 kph great time
  16. 2021 3.0 Supra (Jb4) vs 2018 M4 Comp (tuned, DCT)

    great race what is your 60-130 time?
  17. how the cooling system works?

    hello im trying to understand how the cooling system works i read that there is 3 coolers for the intake(heat exchanger and 2 remote radiators), 1 radiator for engine coolant and 1 cooler for the transmission? i try to look for videos that explain what the remote radiators do but could not find...
  18. Dragy/Vbox (1/4mile, 100-200kmh, 60-130mph)

    great post, please keep it alive cant wait to join and share my times





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