Jb4 - explain it to me like I'm 5

[xxjt18xx]

Thinking about running a jb4 on the 2020 Sq5. I have never done any tune on any of my cars so I'm just a bit lost. I've done some research but majority of the posts include terminology I'm just not accustomed with.

My upgrades:
- Resonator delete
- Roc euro cai
- Jb4 (soon)

So basically I would like to know the pros / cons. how much does +4 psi really do to the overall power of the car?

Does this tube include a "burble" tune - does it get more aggressive with the increase in power?

Thanks in advance!

[1S32K16]

I have been running my JB4 for a little over a year, got it a few days after picking up the car new off the lot in July of 2019. I ran a JB1 stage 2 on my S3 for 3 years and was very happy. on my SQ5, I just installed a downpipe and have been switching between Map 2 (91 octane fuel) and map 4/5 with 5 gallons of E85 blended with 91 since first getting the JB4. The power with the DP and less restrictive BMC filter is very noticeable and makes the car pretty darn quick. For the price and ease it satisfies my desire for more power on the car. Obviously as you go up stages with a tune, you will get better power bands.

As for burbles, the DP at least makes the car an animal on upshifts. I was surprised as I am running the 200Cel cat from Redstar and it’s like a gunshot when I am accelerating. It gets even more aggressive when I run the E30 map. However only a tune will offer a true burble adjustment. The JB4 has no real burble control.

Just to clarify, the JB4 is a piggy back not a tune. A true ECU tune most people will agree is generally better however you compromise in the sense that your ECU is flashed with a tune where as the JB4 is harder to trace and identify (once removed obviously) in the event you have some sort of major engine/drivetrain malfunction that you need to get covered under warranty.

Basically the JB4 plugs into 3 or 4 main engine sensors depending on which revision you get and essentially tricks the cars ECU into thinking it needs to increase boost. In turn depending on which map you run and what fuel you pump it will increase boost more as you go from maps 1-5 or run a custom map6.

From what I have seen, I would say 85-90% of guys running it are happy. There are always those who have some sort of issue whether it’s a tune or a piggy back it’s bound to happen. But Burger and George from my experience provide pretty good service and support for those running the JB4.

EPL another tuner, will soon be releasing a ECU tune and eventually TCU tune for the B9 SQ5 that will allow you to tune and flash maps at home. The benefit of this is you don’t have to remove and send your ECU to a tuner to go back to stock or get updates or switch fuel maps.

Hope this helps.

[itsmatt33]

Thinking about running a jb4 on the 2020 Sq5. I have never done any tune on any of my cars so I'm just a bit lost. I've done some research but majority of the posts include terminology I'm just not accustomed with.

My upgrades:
- Resonator delete
- Roc euro cai
- Jb4 (soon)

So basically I would like to know the pros / cons. how much does +4 psi really do to the overall power of the car?

Does this tube include a "burble" tune - does it get more aggressive with the increase in power?

Thanks in advance!

good answer above but an even more dumbed down version is this:

2 kinds of tunes:

1: what people like to call a piggyback. these are modules with connectors you connect in your engine bay (i.e. JB4, ABT, racechip etc)
These allow you to get nice bumps in power are are easily removable 4-6 connectors and off way less of a chance of ever being detected by a dealer. These are not true tunes as the modules just trick your car into thinking it needs more whether it be boost or fueling or whatever. JB4 seems to give you the most options with settings out of all the piggybacks but if you are like me and just wanted a set it and forget it type setup then ABT is a great option. ABT already works with audi a ton so i trusted them most. of course they also command a much higher price tag

2: a true software tune. This requires either flashing at a shop or actually send your ECU to the tuner for coding (because the model is so new they need the ECU on site) I am sure that soon there will be at home flashing. As i said these are true tunes and changes the parameters of your car entirely. They cannot just simply be "removed" and because of that they are detectable by dealers and can void your warranty. They run better than piggybacks and have 100000 times more options like changing rev limiters, fueling and burbles (although burble tunes are stupid and typically just bad tuning. Our cars already shift burble and do some burble with an exhaust)


My two cents: if you care about warranty go with ABT or JB4. If JB4 stay on a conservative map. If you dont give a shit about warranty go with APR or Revo or EPL. EPL probably has the most options especially with their transmission tune coming soon but APR and Revo are brand names that you can always count on.

[4-ring-sleepers]

Thinking about running a jb4 on the 2020 Sq5. I have never done any tune on any of my cars so I'm just a bit lost. I've done some research but majority of the posts include terminology I'm just not accustomed with.

My upgrades:
- Resonator delete
- Roc euro cai
- Jb4 (soon)

So basically I would like to know the pros / cons. how much does +4 psi really do to the overall power of the car?

Does this tube include a "burble" tune - does it get more aggressive with the increase in power?

Thanks in advance!

i ran jb4 for 2 years. i am now beta testing EPL since i have hybrid turbo installed. i am full bolt-on. when i ran JB4 with e20-30 blend my best 0-60 was 4.38 and my best 1/4 mile was 12.48. when i daily drive to work, i would use map3 and it was always very peppy when in "S" mode. I am planning on using jb4 stacked onto my EPL tune.

one bonus that JB4 has is you can get the bluetooth module version and then pay a small app fee and you can run the app and see whats going on and you can eventually start logging and sending to george (sounds hard but easy once comfortable with the app) you send logs to George at Burger Motorsports and he will evaluate and tell you if everyting is going okay. and you can scan simple engine codes if the come up and clear them while driving. ECU tunes do not provide that option. I am using best tune option available today which is EPL and they have a obd2 cable 2 pc interface that allows you to flash at home from tuned to stock and switch tunes when updates arrive.

same with JB4, you will get the opportunity to update firmware as its developed for the optimal performance.

[dirtysoil]

Plug it in, car goes faster. 🤣

[xxjt18xx]

wow, thank you so much for the in depth response. i certainly have a better understanding now.

as far as the maps go, it seems as if map 3 is the clear cut favorite for everyone. is that because you don't have to mix fuel (still kind of confused about that - will have to Google).

thanks for clarifying the burble point as well. I wish our exhausts sounded like the x3m exhausts lol.

also when it comes to Rev1 vs Rev2, is there really a huge / noticeable difference? exploring all my options at the moment

[1S32K16]

wow, thank you so much for the in depth response. i certainly have a better understanding now.

as far as the maps go, it seems as if map 3 is the clear cut favorite for everyone. is that because you don't have to mix fuel (still kind of confused about that - will have to Google).

thanks for clarifying the burble point as well. I wish our exhausts sounded like the x3m exhausts lol.

also when it comes to Rev1 vs Rev2, is there really a huge / noticeable difference? exploring all my options at the moment

If you want burbles, get a Downpipe. My downpipe and Jb4 make all the right noises. Burbles, pops, bangs, gunshots on hard upshifts. No tune required.

Maps are based on fuel. If you have access to 93 octane start on map3. If you want to blend 93 with 5-6 gallons of e85 you can go to map 4 or map5 no issues.

[Chris.green]

If you want burbles, get a Downpipe. My downpipe and Jb4 make all the right noises. Burbles, pops, bangs, gunshots on hard upshifts. No tune required.

Maps are based on fuel. If you have access to 93 octane start on map3. If you want to blend 93 with 5-6 gallons of e85 you can go to map 4 or map5 no issues.

Which core did you get with your downpipe?

[1S32K16]

Which core did you get with your downpipe?

200Cel, I had a CEL a few days after installing but it went away after clearing and hasn’t come back. I don’t know if it’s just my car, but it really enhances the burbles on downshift and pop on upshifting especially hard acceleration 1st to 2nd is super loud and 2nd to 3rd is a nice more crisp bang.

Sid note I am not running an O2 spacer. Pops and bangs are even louder running the e30 blend than straight shitty 91.

[Chris.green]

200Cel, I had a CEL a few days after installing but it went away after clearing and hasn’t come back. I don’t know if it’s just my car, but it really enhances the burbles on downshift and pop on upshifting especially hard acceleration 1st to 2nd is super loud and 2nd to 3rd is a nice more crisp bang.

Sid note I am not running an O2 spacer. Pops and bangs are even louder running the e30 blend than straight shitty 91.

Are you running the magnaflow pr the hjs hd?

[1S32K16]

Are you running the magnaflow pr the hjs hd?

I went with the HJS HD. I figured for the price it was the best option to not throw a CEL based on other reviews compared to shelling out the extra cash for the 300Cel HJS. Looking back the Magnaflow sounds like a pretty good option also based on the description. But I am pretty happy, car sounds a little boaty in comfort mode when my wife is in the car under low acceleration from 2nd to 3rd gear if that makes sense.

[JeeprageII]

After 2 years of ownership and holding out, I'm finally going to throw a few mods on. Links came today and going to order the JB4 and probably PC cable today. Anyone find them on sale or discounted?

[Sethtec]

Anyone have the dyno chart for the JB4 on the B9 2 liter (2021 Q5)? I can't see to find it. TIA

[H3llraisa]

Thinking about running a jb4 on the 2020 Sq5. I have never done any tune on any of my cars so I'm just a bit lost. I've done some research but majority of the posts include terminology I'm just not accustomed with.

My upgrades:
- Resonator delete
- Roc euro cai
- Jb4 (soon)

So basically I would like to know the pros / cons. how much does +4 psi really do to the overall power of the car?

Does this tube include a "burble" tune - does it get more aggressive with the increase in power?

Thanks in advance!

I had my JB4 on for couple weeks and didn’t see that much difference between stock. Than got the IE Stage 1 and Stage 2 TCU tune and holy smokes heck of a difference. Love it.


Sent from my iPhone using Audizine Forum

[Hostile]

I had my JB4 on for couple weeks and didn’t see that much difference between stock.

It sounds like you didn’t change the map on it…