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  1. Collection of JB4 Experiences

    Part of the reason I havent pulled the trigger on BM3 is because California..... I will eventually do it but want to do a cloned ECU so I can just swap back the stock one when its time. The power I make with the JB4 is just fine with me since I am not looking to be the fastest one out there.

  2. Collection of JB4 Experiences

    Thanks for this insight. Honestly even cost aside it's just a lot more convenient rn to pop in the JB4 than send my ECU out.

  3. Collection of JB4 Experiences

    I just checked out of curiosity. In my time selling parts, I've sold about 90 Jb4s to supra, and honestly, I would say 90% of those people are more than satisfied with the results they gain, especially after some custom tuning sauce by @Jesse DaBears which really does make a difference in one of...

  4. Blown Turbo - still under warranty - chances of replacement?

    I've noticed that with most blown stock turbos it happens on a tune or piggyback tune of +4 psi or greater. I've seen this now on all stg2 tunes from BM3/MHD, +4 on JB+, and anything revolving around Map 2,3,4,5 on JB4 which involves at least +4 psi. But what I haven't seen yet is a blown turbo...
  5.

    WTB JB4 tuner with Bluetooth connector

    Exactly, if I was single and had no kids. All day. I looked it up the other day for fun and it was like +3,000 once you had everything together. Nuts.
  6.

    WTB JB4 tuner with Bluetooth connector

    Yeah, with you on that. A $400 secondhand JB4 is nowhere near the investment of EPC/Femto unlock + BM3 at ~$2200 (before custom tuning too)

  7. Euro Performance Center Femto DME Unlock Journey to Finland Live

    How did you get ahold of him? btw my shipping tracker just said out for delivery for today so if that helps you other guys.

  8. Euro Performance Center Femto DME Unlock Journey to Finland Live

    How does it compare to JB4 and what map did you end up using it?
  9.

    WTB JB4 tuner with Bluetooth connector

    You know, I’ve followed the thread and am absolutely wanting to pull the trigger on it, and tune with MHD or BM3 but it’s out of my budget at the moment. So for the time being, I wanna try the JB4. I’m new to modifying and tuning, so I thought this would be a good start. Let me know once you...
  10.

    WTB JB4 tuner with Bluetooth connector

    Check out this thread. I just moved to a tuning platform and will be putting my JB4 up for sale next week. This isn't good business but if I was you, I'd skip the JB4 and ship that DME to Femto. Trust me. If i could do it all over again, I'd skip the JB4 and go straight to BM3 or similar...

  11. Euro Performance Center Femto DME Unlock Journey to Finland Live

    Hey fellas. Like i mentioned above, i received my DME earlier today. Was able to get BM3 installed. HUGE thanks to Louaye from EPC. Dude is a champ. Walked me through the whole process via text and phone. That's customer service. First time BM3 user. Was able to download and test a few...

  12. Euro Performance Center Femto DME Unlock Journey to Finland Live

    Right now I'm on a JB4 with full bolt-ons 440/456 on E15. Tuner said that was essentially 93. I'm hoping to see north of 460/500 on a E30-40. On E50 I'd like to see 475/520. I'll be running BM3s flex fuel kit when it finally arrives. Until then I can track my E content using the Fuel-it...

  13. A90 Supra 1/4 Mile Times

    Honestly with a 2020, you should really take advantage of it being able to run Ecutek, bm3, and mhd. No idea why anybody would want to run jb4 on a 2020……..

  14. Parts Install on a '22 Supra MKV w/Kinetic Autoworks, LLC

    For JB4 Tunes I would highly recommend @Jesse DaBears at 1FastSupra But if you're going full send on the DME unlock... P2uned is the way to to, they are a top shop. Norris and the crew there are super cool, very honest and knowledgeable.

  15. Parts Install on a '22 Supra MKV w/Kinetic Autoworks, LLC

    Sorry to hear this. Kinetic tuned my jb4 map6 for me about 3 months ago. While i was getting it tuned, Sean sold me on getting the trans tuned via xHP. I paid them $500 for what I thought was a license. They flashed my supra with the stage 3 tune using their shop license and called it a day...

  16. Questions about jb4

    When you're a few custom maps in with the jb4 and too deep to pull out lol. If I could do it all over again, I'd prob go down the unlock route and call it a day and not bother with the jb4 but like someone said, different strokes for different ppl. Jesse is GREAT and his sauce is bomb though.

  17. Questions about jb4

    Why are you cloning the ECU when BM3 custom rom is available without a clone?

  18. Questions about jb4

    JB4 is still going to be less for now, but if you buy a JB4 second-hand at their going rate on this forum ($400-450 w/bluetooth) - its still the best performance value. I paid $425 for my JB4, custom tuning it myself for free, and put a $400 downpipe in it. I should be pushing ~450whp with...

  19. Questions about jb4

    No...it's 400 (Used with BT) + 300-600? (was less than it is now....was less than JB4 when I did it). I still haven't even got to the "unlock" price with Jb4 and tune. Unlock is only half of it. And if the dealer relocks your sh*t? $700 again or w.e it is. Jb4? No relocks, just quick easy cheat...

  20. Questions about jb4

    I didn’t think of that. Good point. You could pull the JB4 out a pinch easier, I’d think and have a more marketable car for the masses. If/when you ever went to sell… Ultimately it’s what the end user wants to do and I’m sure there’s a lot more flexibility (and complexity) with unlocking the...





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