you can get 100 HP if you custom tune Map 6 with boost by RPM, fuel enrichment adjustments, WG duty cycle adjustments and so on which is what makes the JB4 so awesome. The gains with Map 1 are great in itself and that is the lowest map. The best feature on the JB4 is that it doesn't rewrite your ECU tune, you can turn it off and you can remove it from car to car if you want as long as its the same vehicle.
JB4 rides the octane.....i.e. knock sensors. Splash some E in it and watch the numbers climb. JB4 does tons more than map 1 and map 2. It has boost by gear for the first 3 gears, additive meth control, P.I. control and if you splash about 5 gallons of E in it is a different car altogether. You have to add the octane to get the numbers. JB4 is octane sensitive because as you add the boost, the timing is more and more aggressive. My wife runs around on map 2 for daily driving and throws some E in it on the weekends. JB4 is a tuners delight if you use all the features.
Absolute truth. Well said. i have had the JB4 on 4 of my vehicles, 2019 Genesis G70 3.3T, 2019 Hyundai Santa Fe 2.0T, 2021 Ford F150 2.7 Ecoboost and now my 2023 Hyundai Kona N 2.0T. It makes a huge difference even in Map 1. The N Hyundais have octane learning with 93+ US Octane fuel and will bump boost by +3 PSI, so even with Map 1 octane learned I get 22 PSI!
@@gionieves2646 Nice, Does the Kona logic support E85 and does the JB4 for that vehicle also have additive meth? If so, I highly suggest doing boost juice and the meth map... it gets rowdy!
deciding between a 2020 and 2021. market is kinda weird right now where a lot of 2021's are less expensive than 2020's (just from what I've seen). it would be great to see the difference between a custome JB4 tune (2021 of course) and a custom ecutek tune on a 2020 both stock or same mods.
I’m on jb4 map 2 i have a catless dp and 98 octane fuel but the car is running lean , the jb4 AFR is showing 14.5 which is dangerously lean how to richin it up please help!!!
I have a 2021 MKV. I was able to tune my car by simply having it unlocked, not cloned or sending it off to Finland. I think as long as it was before June 2021, you should be fine. Mine is March 2021 production. I am tuned by ECUTEK, with a custom Botti tune.
Hello. Beautiful car. What did you do to your fenders if you don’t mind sharing and who makes the rest of your aero? Front splitter, side skirts and wing? Thank you. 🙏
Thanks for such a great video...I am planning to buy one from year 21/22...Can you please let me know what's the impact of all these different tunnings on insurance payment 😢....
Great video. I have a 2022 Z4 M40i. I'm looking to go JB4. I've seen a lot of reviews that say the standard airbox setup is more then good enough for the JB4 tune (I'm not after more induction sound). I'm also in the UK and want to go the down pipe route. However, I'm concerned about the check engine light that's associated with a catless downpipes. Also, how it may affect MOT's. Can you let me know why you went completely catless and how it will affect MOT's going forward. I know there are different versions of the downpipes with varying degrees of cats inside. I'd appreciate your help selecting the right dp based on the above please. Thanks in advance.
Hi there, in short I am prepared to put my catted downpipe back on for MOT, I wanted to go with a downpipe simply to get the best power out of the car possible however there is a problem here in the UK - if you remove the downpipe and the OPF in the exhaust it will go into limp mode due to the torque limitations, in short I had to send my ECU off to be unlocked then run bootmod3 so I would strongly advise just keeping the OEM downpipe
I made 405 whp on jb4 map 2 with stock downpipe and airbox with just a cat back exhaust? Mines a 2021. How is it so different? I had mine dyno’d at SRD.
That’s impressive! I know a few people who’s results are comparable with my own findings on here so I’m not sure as that seems incredibly good. 405 at the engine would make more sense?
Stock '21 supras in USA make 390-400ish at wheels- gen 2 b58... So 405whp is not impressive from jb4. Have had it on a '21 and '22 and never happy- gains minimal and very inconsistent performance with throttle closures. Adding catless dp makes performance worse also - due to DME mapping and over boosting occurs and causes massive throttle closures to try to control boost. Sent DME to Femto for unlock once bm3 custom ROM was available in May of this year and there is absolutely no comparison between the two, DME flash tuning is only way to go if you are wanting true reliable and consistent gains. +100whp is easily achieved- add wmi, catless dp and ethanol and 550whp is within reach with stock turbo.
@@purefkingmagic2391 wait so we get 390 whp from a 382bhp car? You're smoking. The JB4 works just fine, and is well worth the money for the bump in HP. Supras do NOT dyno at 390 WHP...even this one didn't with a JB4. Imo, JB4 > Expensive tune and risking relocks. Your supra is jacked up or you're doing something wrong. JB4 does not have as many issues as you claim...maybe yours did. I've had it for 2+ years now without a single issue.
@@joshuadqueen there are multiple videos online of ppl dynoing their 21 and up supras in the usa, getting 380-390 whp on dynos, on stock supras. Car and driver did a dyno vid too, and got that whp number. Don't tell people they are wrong when you yourself are uniformed
I think the 100hp is up to if you do custom tuning with the jb4 with mods, definitely not for map 1 or 2 which are mild tunes. I had a jb4 and I have had flash tunes on my cars over the years. Fuck jb4, get a flash tune. JB4 is pretty inconsistent. JB4 can only trick your ecu into doing a couple things. Flash tunes don't trick anything, it just works like it should. Flash tunes also control vanos, coolant temps, throttle response, and a whole lot more parameters the JB4 cannot touch. Either way your warranty is gone. If you think you are going to just remove the jb4 and pretend nothing has happened... Good luck. BMW has had shadow codes for the jb4 for over 10 years, you're busted. If you can afford to buy the car and mod it, don't cheap out.Get the femto unlock and go mhd.
Hi mate, all part of the process :) since this video I have now gone femto and running bootmod3 I just need to get it on the dyno to see what its putting out in order to do an update
guess the 'troll' in your username is true - where did I complain? just stating the figures before and after but you continue to make up your own narrative :)
@@ZER0Y0N 3:30 5:00 5:25 The combination of these 3 statements seem to imply that jb4 isnt everything they advertized, but hey you be the judge if theyre still good enough to buy in spite of this shortcoming. Thats the way you have your comments framed. Sure you didnt come outright and say "jb4 doesnt give what they say", but you didnt frame it like "i couldve probably got the advertised hp gain if i had done all the correct things but im happy with the halfmeasure map"
@megatrolltrollington they advertise 100bhp, they don’t claim 100bhp with supporting mods, this video is showing people if they fit one how much they will realistically get. I don’t need to be happy with a “half measure” map - I have my ecu unlocked and tuned with BM3. That’s the entire reason I’m not complaining as I mentioned and this video is for informational purposes.
@@ZER0Y0N i think you are the only person who was uninformed of the 100bhps gains being a best case scenario using their most aggressive map (in conjunction with supporting mods). You know, the one you were too scared to use? You're like those people who get mad when their K&N air filter doesnt provide +12bhp 😂.
this is why Toyota should have made the car, lets remake the most legendary TUNER car, and make it so you have to jump hoops through to tune it. makes sense. imagine if these weren't made by bMw. I would have bought one in a heartbeat. what a waste
Had Toyota made a 3JZ or in house 6 cylinder in house motor, the Toyota would have cost more than it costs now. Have you ever googled why the 90s Supra got discontinued and the LFA seized to exist? Toyota wasn't about to get burned a 3rd time with poor sales. This partnership with bmw is a low risk move.
just so we're on the same page, BMW makes some of the best tuning motors out there, and always make much more power than advertised. also can hold large power gains without blowing up. not sure what the fuss is about.
you can get 100 HP if you custom tune Map 6 with boost by RPM, fuel enrichment adjustments, WG duty cycle adjustments and so on which is what makes the JB4 so awesome. The gains with Map 1 are great in itself and that is the lowest map. The best feature on the JB4 is that it doesn't rewrite your ECU tune, you can turn it off and you can remove it from car to car if you want as long as its the same vehicle.
JB4 rides the octane.....i.e. knock sensors. Splash some E in it and watch the numbers climb. JB4 does tons more than map 1 and map 2. It has boost by gear for the first 3 gears, additive meth control, P.I. control and if you splash about 5 gallons of E in it is a different car altogether. You have to add the octane to get the numbers. JB4 is octane sensitive because as you add the boost, the timing is more and more aggressive. My wife runs around on map 2 for daily driving and throws some E in it on the weekends. JB4 is a tuners delight if you use all the features.
Absolute truth. Well said. i have had the JB4 on 4 of my vehicles, 2019 Genesis G70 3.3T, 2019 Hyundai Santa Fe 2.0T, 2021 Ford F150 2.7 Ecoboost and now my 2023 Hyundai Kona N 2.0T. It makes a huge difference even in Map 1. The N Hyundais have octane learning with 93+ US Octane fuel and will bump boost by +3 PSI, so even with Map 1 octane learned I get 22 PSI!
@@gionieves2646 Nice, Does the Kona logic support E85 and does the JB4 for that vehicle also have additive meth? If so, I highly suggest doing boost juice and the meth map... it gets rowdy!
@@tunerdadtunerdad7927 there is an E30 map and a WMI map along with the other maps (91, 93, 93-E30, Race fuel)
@@tunerdadtunerdad7927 it doesn't support pure E85.
Worth, absolutely worth. He's measuring WHP. JB4 probably meant BHP, which most ppl use for bigger looking numbers on paper.
JB4 actually states 80 whp just by using JB4, which is a bit of exaggerated number.
Solid gains with just JB4 and DP. I'm happy for you, especially considering the Euro spec Supras come with a fewer ponies than the U.S. counterparts.
This was with no DP to be fair just an exhaust so yeah a decent result overall!
@@ZER0Y0N I read one of your other comments. Looks like you went with either MHD or BM3? How was the experience shipping the DME back and forth?
deciding between a 2020 and 2021. market is kinda weird right now where a lot of 2021's are less expensive than 2020's (just from what I've seen). it would be great to see the difference between a custome JB4 tune (2021 of course) and a custom ecutek tune on a 2020 both stock or same mods.
I'm seeing the same thing and would also be curious to know the HP difference
Great info what more gains with a custom tune be over the box and Sounds so much better with the new downpipe
A custom jb4 map is claimed it should push it to around 430 wheel HP - that would be nice!
@@ZER0Y0N it would be awesome to make a video with a custom Map 6 tune!
I’m on jb4 map 2 i have a catless dp and 98 octane fuel but the car is running lean , the jb4 AFR is showing 14.5 which is dangerously lean how to richin it up please help!!!
I have a 2021 MKV. I was able to tune my car by simply having it unlocked, not cloned or sending it off to Finland. I think as long as it was before June 2021, you should be fine. Mine is March 2021 production. I am tuned by ECUTEK, with a custom Botti tune.
I’ve heard if you’ve had it serviced by Toyota they may have done something to that?
I wish someone would do this exact same video with a Supra with the US specs.
How did you get the running lights to be amber/yellow? Sweet build! Just got a JB4, going to get it tuned with Jesse soon
They are replacement boards from Motorsport + - there is an install video on my channel :)
Hello. Beautiful car. What did you do to your fenders if you don’t mind sharing and who makes the rest of your aero? Front splitter, side skirts and wing?
Thank you. 🙏
@CarPassionChannel hi, the full kit is artisan spirits step 2 if you search on Google :)
please test map 4 and 5 with e30, e40 or e50.
great video
Thanks for such a great video...I am planning to buy one from year 21/22...Can you please let me know what's the impact of all these different tunnings on insurance payment 😢....
It shouldn’t impact insurance at all..
Great video. I have a 2022 Z4 M40i. I'm looking to go JB4. I've seen a lot of reviews that say the standard airbox setup is more then good enough for the JB4 tune (I'm not after more induction sound). I'm also in the UK and want to go the down pipe route. However, I'm concerned about the check engine light that's associated with a catless downpipes. Also, how it may affect MOT's. Can you let me know why you went completely catless and how it will affect MOT's going forward. I know there are different versions of the downpipes with varying degrees of cats inside. I'd appreciate your help selecting the right dp based on the above please.
Thanks in advance.
Hi there, in short I am prepared to put my catted downpipe back on for MOT, I wanted to go with a downpipe simply to get the best power out of the car possible however there is a problem here in the UK - if you remove the downpipe and the OPF in the exhaust it will go into limp mode due to the torque limitations, in short I had to send my ECU off to be unlocked then run bootmod3 so I would strongly advise just keeping the OEM downpipe
@@ZER0Y0N Thank you for letting me know. I’m hoping a sports cat would get round this?
I made 405 whp on jb4 map 2 with stock downpipe and airbox with just a cat back exhaust? Mines a 2021. How is it so different? I had mine dyno’d at SRD.
That’s impressive! I know a few people who’s results are comparable with my own findings on here so I’m not sure as that seems incredibly good. 405 at the engine would make more sense?
Stock '21 supras in USA make 390-400ish at wheels- gen 2 b58... So 405whp is not impressive from jb4. Have had it on a '21 and '22 and never happy- gains minimal and very inconsistent performance with throttle closures. Adding catless dp makes performance worse also - due to DME mapping and over boosting occurs and causes massive throttle closures to try to control boost. Sent DME to Femto for unlock once bm3 custom ROM was available in May of this year and there is absolutely no comparison between the two, DME flash tuning is only way to go if you are wanting true reliable and consistent gains. +100whp is easily achieved- add wmi, catless dp and ethanol and 550whp is within reach with stock turbo.
Dyno types.
@@purefkingmagic2391 wait so we get 390 whp from a 382bhp car? You're smoking. The JB4 works just fine, and is well worth the money for the bump in HP. Supras do NOT dyno at 390 WHP...even this one didn't with a JB4.
Imo, JB4 > Expensive tune and risking relocks.
Your supra is jacked up or you're doing something wrong. JB4 does not have as many issues as you claim...maybe yours did. I've had it for 2+ years now without a single issue.
@@joshuadqueen there are multiple videos online of ppl dynoing their 21 and up supras in the usa, getting 380-390 whp on dynos, on stock supras. Car and driver did a dyno vid too, and got that whp number. Don't tell people they are wrong when you yourself are uniformed
Why didnt you put map 3
Did you delete the GPF when you added the catless downpipe?
Hi, the OPF was already gone after the first stainless exhaust was fitted yes
My stock a91 with a cat less dp and no tune did 404whp.
Yep, the us A91 are tuned differently so you make more power to begin with
I think the 100hp is up to if you do custom tuning with the jb4 with mods, definitely not for map 1 or 2 which are mild tunes. I had a jb4 and I have had flash tunes on my cars over the years. Fuck jb4, get a flash tune. JB4 is pretty inconsistent. JB4 can only trick your ecu into doing a couple things. Flash tunes don't trick anything, it just works like it should. Flash tunes also control vanos, coolant temps, throttle response, and a whole lot more parameters the JB4 cannot touch.
Either way your warranty is gone. If you think you are going to just remove the jb4 and pretend nothing has happened... Good luck. BMW has had shadow codes for the jb4 for over 10 years, you're busted.
If you can afford to buy the car and mod it, don't cheap out.Get the femto unlock and go mhd.
Hi mate, all part of the process :) since this video I have now gone femto and running bootmod3 I just need to get it on the dyno to see what its putting out in order to do an update
315?? Stock is around 388
Not the EU models
Numbers seem low
What wing is that on this car?
Hi there, Artisan Spirits step 2 :)
100hp gains is the best you can hope for with jb4. You cant load the half ass map and complain about not getting the right hp gains.
guess the 'troll' in your username is true - where did I complain? just stating the figures before and after but you continue to make up your own narrative :)
@ZER0Y0N wow so you saw my name and thought, im going to reply anyways. Its not looiking good for you already...
@@ZER0Y0N
3:30 5:00 5:25
The combination of these 3 statements seem to imply that jb4 isnt everything they advertized, but hey you be the judge if theyre still good enough to buy in spite of this shortcoming.
Thats the way you have your comments framed. Sure you didnt come outright and say "jb4 doesnt give what they say", but you didnt frame it like "i couldve probably got the advertised hp gain if i had done all the correct things but im happy with the halfmeasure map"
@megatrolltrollington they advertise 100bhp, they don’t claim 100bhp with supporting mods, this video is showing people if they fit one how much they will realistically get. I don’t need to be happy with a “half measure” map - I have my ecu unlocked and tuned with BM3. That’s the entire reason I’m not complaining as I mentioned and this video is for informational purposes.
@@ZER0Y0N i think you are the only person who was uninformed of the 100bhps gains being a best case scenario using their most aggressive map (in conjunction with supporting mods). You know, the one you were too scared to use?
You're like those people who get mad when their K&N air filter doesnt provide +12bhp 😂.
this is why Toyota should have made the car, lets remake the most legendary TUNER car, and make it so you have to jump hoops through to tune it. makes sense. imagine if these weren't made by bMw. I would have bought one in a heartbeat. what a waste
Had Toyota made a 3JZ or in house 6 cylinder in house motor, the Toyota would have cost more than it costs now. Have you ever googled why the 90s Supra got discontinued and the LFA seized to exist? Toyota wasn't about to get burned a 3rd time with poor sales. This partnership with bmw is a low risk move.
Toyota would've also locked the ECU
just so we're on the same page, BMW makes some of the best tuning motors out there, and always make much more power than advertised. also can hold large power gains without blowing up. not sure what the fuss is about.
@thebvandersnatch6975 bingo.
@thebvandersnatch6975magna??