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  1. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    2024 MKV Supra 3.0 6 speed manual with VRSF highflow catted d*******, AWE touring catback exhaust, MST cold air intake, JB4 with latest firmware and fuel pressure control running E20 with mix of 93 octane and E85, this log is map 1 in 3rd gear Map 1 3rd gear...

  2. Kashbringer's 2.0 Build thread

    Question on the Mss lowering springs, installing it did it show any difference right away especially on the rear? Because mine is almost maxed out but its still 3-4 fingers gap. Is it normal and settles after a few days or weeks?

  3. My First real issue in 15k Miles. Failed Driveshaft Center Bearing

    I was also told Map 2 was safe too. (injen intake, Active Autowerke Catted DP, AWE Track exhaust). I'm at 50K miles.

  4. A90's Catless F1 DP, any feedback ?

    Looking for anyone that has purchased A90's F1 catless DP with no CEL., SKU: TO-SPRB58-NCAT. This DP is the direction I want to go and I'm wondering if anyone has any experience with this purchase? I'm ordering one with ceramic coating. Any CEL issues? Did it bolt up without difficulty? Any...

  5. My First real issue in 15k Miles. Failed Driveshaft Center Bearing

    Damn that sucks! Curious what shop you use since I‘m local as well. You can PM me if you don’t want to post it publicly. I have a JB4 and was told I could keep it at Map 2 safely (catless dp & AWE exhaust and a few other minor cooling goodies). Makes me think twice ?

  6. My First real issue in 15k Miles. Failed Driveshaft Center Bearing

    Jb4 tune, don’t remember what map I was running at the time, catless downpipe and awe exhaust. Warranty was a no and I’m about $3,800 in for parts and labor with the shop that is doing everything now. Looking like I’ll have the car back and fixed by mid next week.

  7. Smoking from exhaust

    Stock turbo 40k miles. Catless dp,awe intake, hks exhaust and jb4. I’ll try and get a video now

  8. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    https://www.supramkv.com/threads/seeking-more-info-on-jb4-map-6-tuning.16759/post-313823

  9. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    @ColonelAdama. So I realized my sport valve isn’t opening for my straight pipe side since I put the JB4 on. So I’ll probably rerun my logs for you with open exhaust when I can once I figure out that issue. I was wondering why my cabin was so quiet again… lol

  10. 2024 Supra - better exhaust sound - never modded a car in my life.

    When it comes to tuning, does JB4 do the same thing? Tunes and voids the warranty?

  11. SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

    I’ve heard that before. Thx for confirming. Since you live in MIA, if you’ve tracked yours, you ever get limp mode or reduce power with the JB4 on? I’m catless & other placebo effect items: heat exchanger, intake, exhaust, etc. Edit: and just found this. I need to punch it and send Adam my log...

  12. Muffler Delete

    QUESTION….for those that have done a muffler delete or any custom exhaust. If a muffler delete is done or I add a smaller muffler will the car throw a code and can I still use the active muffler flaps? Also any clips with a muffler delete would nice. Currently running a custom tune on JB4 from...

  13. CF Side Mirror Caps

    Awesome, shot you a DM FYI.

  14. CF Side Mirror Caps

    Thanks. Just ordered a set from your site? Probably gonna be getting with you soon for tuning too. Waiting for my downpipe. Currently running map4 on JB4 with ARK exhaust.

  15. MST 6" Intake - Installation and Review

    Dude you gotta show your whole car & that sick wrap! The Speed Industry snorkel should be perfect with whatever intake. Unless, these guys know one is better with it…. Catless dp by MAAD, was perfect for me, performance and price. Since you live in Florida - @NitroYellowMKV is in your neck of...

  16. engine/intake noise changed - "air rushing" noise - boost leak?

    first time post - 2023 manual supra - mostly stock (no exhaust or downpipe) i have been recently playing with a JB4 + E20 and I noticed the engine sound change. i tried recording it but its not significant enough to hear on a video. -only under WOT acceleration. -engine performance not really...

  17. What did you do to your Supra today?

    Not emissions. Depends how strict they are locally...and if you don't have 'a guy' I found it easier to keep the downpipe on, OEM exhaust and I unplug the JB4 (back to map0). Might be time to go catless and get a FEMTO unlock :love:

  18. XHP Reviews and Feedback!

    Adjusted the wording to mod / power level, suspension / wing isn't going to affect a trans tune. Also removed "Wear" From xhp's own wording on stage 3: Shift pressure and timing maps rescaled for high power cars " Build on Stage 2 files but take everything a bit further. Even shorter shift...

  19. Eastwood ADRO | KW | BBS | HKS Stratosphere Supra Build Thread #2JZ404

    Which one is your favorite mod?

  20. 2022 Supra - Clinking sound from front wheels during high lateral force.

    I'm writing to both catalog and potentially help someone in the future with this problem. Around a month ago when driving with the windows down I heard a sound akin to a rock stuck in the tire when accelerating on a tighter on ramp. I go home, look everything over, nothing. I take the car out...





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