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  1. Seeking more info on JB4 Map 6 tuning

    User adjustments are pretty laid out. Just start plugging in numbers based on your logs. Run map 1 or 2 or whatever map you want and then read your logs and see what you need to change.
  2. Seeking more info on JB4 Map 6 tuning

    Yes. When I say case by case i mean if car is literally horrible to drive with JB4. Then Ill help out. If it just is under performing I dont really do to many right now. If its not enjoyable then yes ill always do it.
  3. Seeking more info on JB4 Map 6 tuning

    Ya MTs are nightmares. Let me know when you are ready to get it sorted out. There is not a tq limiter down low ill tell you that much. This goes again with my statement of there will never be a 1 size fits all custom map lol. Heres one I just finished up last week. 0 Throttle closures...
  4. LAST DAY! 1FS 2023 SUMMER SALE

    Shoot me a DM on what is full price from speed industry and ill see what I can do.
  5. LAST DAY! 1FS 2023 SUMMER SALE

    Interested in comics O_O Payday loans go through the loan department. Please email [email protected]
  6. LAST DAY! 1FS 2023 SUMMER SALE

    Sorry I missed that. No that's not something I can get at this time :(
  7. U-Haul trailer advice

    Yukon is a beast. 20 yr old truck and hasnt let me down yet. Cant wait until we B58 swap it when that knock becomes a heavy THUMP
  8. Transmission swap question

    You have to swap the valve body.
  9. I hear no burbles on jb4

    Check your exhaust flap
  10. LAST DAY! 1FS 2023 SUMMER SALE

    Payday baby. 1FS is now accepting payroll checks. www.1FastCurrencyExchange.com (JK)
  11. Seeking more info on JB4 Map 6 tuning

    Correct its car dependent. If the car finds its happy spot on its own then Ill leave it on. If its not hitting targets, over targets, or compensates with wild swings ill set it where I feel it needs to be and lock it.
  12. Question on JB4 / Decat Limp mode ?

    No issues. The only reason why you would is from an pverboost situation. If so lower duty cycle.
  13. DAW Ultra Flow R Now Available - 2 Port and 6 Port ... Dyno Sheets :)

    Not needed Most standard DPs neck down anyways to accommodate the OEM Exhaust. You standard Catless DP will be fine.
  14. LAST DAY! 1FS 2023 SUMMER SALE

    Afternoon bump!
  15. DAW Ultra Flow R Now Available - 2 Port and 6 Port ... Dyno Sheets :)

    Yup completely plug and play. You will just need an updated flash map.
  16. LAST DAY! 1FS 2023 SUMMER SALE

    Code: GeekedOut23





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