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  1. Catless DP makes less pops

    It can't. JB4 doesn't control fueling or timing at all. It can't. It can only open and close the exhaust valve.

  2. Catless DP makes less pops

    Really?

  3. Catless DP makes less pops

    okay, the reason I ask is the JB4 takes control of the active exhaust and lessens pops and cracks unless specifically turned off….carry on.

  4. Realistic estimated power from botti tune

    Our ethanol quality is not bad here lol - I get close to e80 when pumping on most e85 stations

  5. Realistic estimated power from botti tune

    Botti doesn't tune JB4. You're looking for @Jesse DaBears. 500ish for the full deal if you go like E40 + Meth. @Cptnslo is correct. Botti tunes on Ecutek.

  6. Realistic estimated power from botti tune

    I currently own a 21 3.0. trying to get an estimate power rating from a botti tune with JB4, exhaust, intake and catless downpipe on 91 octane(damn Cali). Don't want to mess with ethanol as we have shit quality here. Any help is greatly appreciated.

  7. 8 Second Club + Labor Day Sale! Now until 9/5!

    No issues with that. Plenty of people like to lock in the sales price and then start tuning at a later time :) . When you get the logging instructions just reply back that you are waiting on parts to be installed.

  8. 8 Second Club + Labor Day Sale! Now until 9/5!

    Man I'm stoked you've extended your sale! Hope to have my catless dp, cold air intake and exhaust installed by next week. If not, hoping you don't have any restrictions purchasing the JB4 tuning if they're still working on my car ?

  9. 2021 Supra 3.0 Premium Absolute Zero w/ Mods SoCal

    Too many cars in the stable and this one doesn't get driven as much as I would like. Located in SoCal and have a clean title in hand. 2021 GR Supra Premium in Absolute Zero Drivers Assist Package OEM Carbon Mirror Caps Original MSRP $57,605 (Will come with Framed window Sticker) The car is...

  10. â—„ SPEED LOGIC â–ş Supra MKV Turbos, Transmissions, Engines & Service in California - (OC, LA, IE, SD)

    SPEED LOGIC AUTOMOTIVE 7124 Garden Grove Blvd. Westminster, CA 92683 Phone or Text: (888) 564-4215 Email: [email protected] Message: Send a Private Message *By Appointment Only* We want to give a warm welcome to the SupraMKV Forum community! We are a fully licensed automotive shop...

  11. â—„ SPEED LOGIC â–ş Mods, Installs, Upgrades & Service for Supra MKV in California - (OC, LA, IE, SD)

    SPEED LOGIC AUTOMOTIVE 7124 Garden Grove Blvd. Westminster, CA 92683 Phone or Text: (888) 564-4215 Email: [email protected] Message: Send a Private Message *By Appointment Only* We want to give a warm welcome to the SupraMKV Forum community! We are a fully licensed automotive shop...

  12. New guy here

    Probably start with h&r springs and a HKS exhaust…. Need to sell the BRZ before my wife has me living in the supra!

  13. Staying cool to avoid power loss

    No I don't the manifold yet - it is on the list but pretty far down since I am not working on building power yet so I just run a JB4 on track - the only engine mods I have right now are a downpipe, full exhaust, intake, heat shield and some catch cans. Last track day was last month at Autoclub...

  14. 2021 Supra ECU locked,Options?

    Thanks, are you running stock exhaust and downpipe?

  15. 2022 Easy Power Path?

    Thanks! JB4 adds boost, so I presume increases temperature and volume of exhaust gases. Anyone have problem with the cat in the downpipe burning up? This was a complaint with a roots style edlebrock super charger common on my previous car. Is the JB4 OEM Cat safe? Highflow AA Downpipe Cat...

  16. 2022 Easy Power Path?

    Regarding your last point, an interesting reply I got from ecutek today. Femto is your only option i guess

  17. 2022 Easy Power Path?

    Been sifting through the threads on the forum and am a bit stuck. Curious to what the "easy" power path is on the 2022. By "easy", I mean 0 down time, 0 stress on the rest of the drive train, don't need more air, throttle bodies etc.. In my previous car it was a header and tune (and simply...

  18. best exhaust for the 2.0 supra

    Mine defiantly overboosts with the catless downpipe and full exhaust. Working with @Jesse DaBears now on a tune through the JB4.

  19. Project Corvette Killer

    So my dad is floating about his brand new corvette. I need to find a way to put it in my rear view mirror. Here is what I have done so far…. 1. New AWS Touring Exhaust 2. JB4 Install map 1 3. Function Werks 3.5 downpipe 4. Injen Cold Air Evolution Intake 5. CWS Heat Exhanger. Need...

  20. Yes, more JB4 content!

    Got the same issue before but got rid of it. Try closing the valve by pressing the BC button (right flasher) - then go to jb4 and disable BC in Dash Menu. The sport button should start working again.





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