BT MOTO - NOT for Hayabusa 2025

[Jacobinasu]

Been trying to work with BT Moto to get a tune done for my bike. A Hayabusa 2025 - ECU number 32920 - 10LD0. I downloaded the stock map and sent to BT Moto for the tune (Penta Carbon + BMC). They responded with
Hello, it looks like dimsport will not accept the stock file that we submit for this unfortunately.
I can revisit it in a month or 2 if you want to wait it out, otherwise you can get a refund on this, sorry for the inconvenience.


Dimsport link for ECU - https://www.dimsport.it/en/applications-list/ecu/bike/denso/32920-10lxx41lxx48kxx/

The ECU number is available with Dimsport as shown above.

Any idea what could be the reason? And should I be running without a tune with these add ons, or is it better to go back to stock? The bike is less than 1000kms.

Appreciate any feedback/input. Thanks

[zucchero]

Since you have removed the catalytic converter so a Tune will be your safe bet.Usually with only slip-ons a Tune is not needed but once a catalytic converter is removed a tune is a must.
That's precisely the reason I haven't removed mine and running with only slip-ons as I don't have a good tuner near me.

[Equanimous]

once a catalytic converter is removed a tune is a must.

Not necessarily. Some high-quality systems, such as akro, work perfectly with the OEM tune, although a remap will definitely unleash more power and likely smooth out the AFR.

[zucchero]

Not necessarily. Some high-quality systems, such as akro, work perfectly with the OEM tune, although a remap will definitely unleash more power and likely smooth out the AFR.

Yes, I have heard this from many that Akro works very well with OEM tune and that it also increases more hp. Thanks for confirming this further.
I would myself love to put Akro but the only problem is full system with dual cans for older gen2 from Akro is very difficult to find. New ones are almost impossible to find otherwise I would have definitely gone for it.

[Sl@Sh]

Not necessarily. Some high-quality systems, such as akro, work perfectly with the OEM tune, although a remap will definitely unleash more power and likely smooth out the AFR.

Not quite true, will work but not in the perfect conditions especially dangerous at 9000+ rpm AFR is too lean which can melt pistons, valves or warp cylinders...
If you ride in low rpm range thats ok, but if you ride at top end frequently thats different story then.

[Sl@Sh]

Yes, I have heard this from many that Akro works very well with OEM tune and that it also increases more hp. Thanks for confirming this further.
I would myself love to put Akro but the only problem is full system with dual cans for older gen2 from Akro is very difficult to find. New ones are almost impossible to find otherwise I would have definitely gone for it.

There is no full akra duals for gen3 only with single silencer. Duals akra are only slip ons.

[michael parris heuberger]

There is no full akra duals for gen3 only with single silencer. Duals akra are only slip ons.

Hi. I have work on a 100,% stock bike . It was run wide open for a few miles. Guy brings me whe bike said it was running bad and leaking oil. It had burned a hole in number 2 piston. So please do not run your bikes hard with out a good tune. Even stock.

[Equanimous]

especially dangerous at 9000+ rpm AFR is too lean which can melt pistons, valves or warp cylinders...

Do you have evidence? It would be interesting to see and analyse on this forum. Watching MM videos, he indicates that the gen 3 Hayabusa runs a little on the rich side from the factory, and that a good quality system does not result in "dangerous" lean conditions. I've never had this happen to me, and I don't know anyone that it's happened to. Again, I'd like to see the evidence because I'm interested in evidence v forum speak.

do not run your bikes hard with out a good tune. Even stock.

A 100% stock bike that ended up with a hole in the piston must have had a major flaw going on. Apart from slip ons and my current full akro, I've only ever had stockers (never flashed) and run them at WOT repeatedly - no problems so far.

[sixpack577]

Yes, I have heard this from many that Akro works very well with OEM tune and that it also increases more hp. Thanks for confirming this further.
I would myself love to put Akro but the only problem is full system with dual cans for older gen2 from Akro is very difficult to find. New ones are almost impossible to find otherwise I would have definitely gone for it.

HAYABUSA 2008~ Akrapovic Full Exhaust System, Used from Japan | eBay

Akrapovic Full Exhaust System. HAYABUSA 2008~. Also, because of the photo limit, not all defects or imperfections may be shown.

ebay.us

I had this on my Gen2, and it was excellent, even on the stock tune.
I liked it better with the baffles in too, and these still have them

[KoMoDo]

You can solve the problem with Woolich Racing.
This package will do the job. The included bin file is sufficient. https://www.woolichracing.com/produ...-gsx1300r-hayabusa-log-box-d-can-package.aspx

If you say you understand this work and will do the fine-tuning yourself (or if you say you will have Chris Moore install the software remotely),
get this package:

https://www.woolichracing.com/products/suzuki/gsx1300r-hayabusa/2023/1339/2021-2025-suzuki-gsx1300r-hayabusa-log-box-d-can-zeitronix-zt-3-wideband-package.aspx

[michael parris heuberger]

Do you have evidence? It would be interesting to see and analyse on this forum. Watching MM videos, he indicates that the gen 3 Hayabusa runs a little on the rich side from the factory, and that a good quality system does not result in "dangerous" lean conditions. I've never had this happen to me, and I don't know anyone that it's happened to. Again, I'd like to see the evidence because I'm interested in evidence v forum speak.



A 100% stock bike that ended up with a hole in the piston must have had a major flaw going on. Apart from slip ons and my current full akro, I've only ever had stockers (never flashed) and run them at WOT repeatedly - no problems so far.

Hi. That was a long time ago. But me putting a new piston is all the proof I need. He was wide open for may be 10 miles it was a 650 cc bike trying to keep up with 1000cc bikes the road is almost straight for all most 15 miles.

[Equanimous]

I have a Woolich autotuner coming in soon to add to my Log-Box, but my full Gen 3 really does not need any tuning whatsoever - it runs perfect with the full akro. The only impact is a slight loss in low end grunt. So why did I get the autotuner? Because WW3 is about to break out and I want to buy stuff before it all goes up in irradiated smoke.

[zucchero]

HAYABUSA 2008~ Akrapovic Full Exhaust System, Used from Japan | eBay

Akrapovic Full Exhaust System. HAYABUSA 2008~. Also, because of the photo limit, not all defects or imperfections may be shown.

ebay.us

I had this on my Gen2, and it was excellent, even on the stock tune.
I liked it better with the baffles in too, and these

HAYABUSA 2008~ Akrapovic Full Exhaust System, Used from Japan | eBay

Akrapovic Full Exhaust System. HAYABUSA 2008~. Also, because of the photo limit, not all defects or imperfections may be shown.

ebay.us

I had this on my Gen2, and it was excellent, even on the stock tune.
I liked it better with the baffles in too, and these still have them

Damn...!!! This one is exactly what I am looking for but unfortunately the seller does not ship it to INDIA. I have someone known in Japan,Will ask him if he can buy it and send me .
Thanks for letting me know these.

[dcnblues]

Do you have evidence? It would be interesting to see and analyse on this forum. Watching MM videos, he indicates that the gen 3 Hayabusa runs a little on the rich side from the factory, and that a good quality system does not result in "dangerous" lean conditions. I've never had this happen to me, and I don't know anyone that it's happened to. Again, I'd like to see the evidence because I'm interested in evidence v forum speak.

I'm all for evidence but was certainly under the impression this was established fact from every tuner that has ever had a bike with an aftermarket exhaust full system. I've heard Chris Moore say it more than once, and it's been kind of accepted knowledge and truth since the first Power Commander came on the market.

[Sl@Sh]

Do you have evidence? It would be interesting to see and analyse on this forum. Watching MM videos, he indicates that the gen 3 Hayabusa runs a little on the rich side from the factory, and that a good quality system does not result in "dangerous" lean conditions. I've never had this happen to me, and I don't know anyone that it's happened to. Again, I'd like to see the evidence because I'm interested in evidence v forum speak.



A 100% stock bike that ended up with a hole in the piston must have had a major flaw going on. Apart from slip ons and my current full akro, I've only ever had stockers (never flashed) and run them at WOT repeatedly - no problems so far.

Dont have numbers here, but I will try to find video where AFR at mid is rich and lean at top end with full exhaust, if you put sport air filter things are getting even worse. Lean condition wont damage engine from day one, but in the long term you will have some kind of damage especially if you ride bike at top end frequently and for long time.

[Equanimous]

Any clear evidence for this long term damage?? I remember being told once that to much masturbation in the long term will be bad for me. But here I am middle aged and still grinning from ear to ear. Getting back on track though, I've just not seen any evidence other than assumptions and beliefs. Id love to see tangible evidence. Don't get me wrong, you're all probably correct, but there's no proof for it that I can see

[oldgixxer]

Any clear evidence for this long term damage?? I remember being told once that to much masturbation in the long term will be bad for me. But here I am middle aged and still grinning from ear to ear.

LMFAO
If I remember correctly (I could be wrong) back when I bought a full Ti Evo 2 Race for my L3 1K,Akro claimed you could bolt it on and gain 10rwhp without a tune. At the time the PCV for the L3 1K was on back-order so I reluctantly rode it and had it dyno'd and it picked up 9.6rwhp and a smidge of torque over stock. It was a bit lean up top since the OEM exhaust had a cat which was now gone. I have the dyno sheets somewhere but I'd have to dig for hours to find them.

I rode it without a tune for a few weeks(just twisties,no top end pulls) knowing that I was doing an engine build very soon and wasn't too concerned if something melted but I knew better than to lock the throttle in 6th gear for miles on end as IMO thats just begging to melt something.

Personally,I'd at the very least have the AFR checked so I could sleep at night. That's just me though.

[sixpack577]

Damn...!!! This one is exactly what I am looking for but unfortunately the seller does not ship it to INDIA. I have someone known in Japan,Will ask him if he can buy it and send me .
Thanks for letting me know these.

View attachment 1710669

You're welcome, and those will clean up well too.
I had them on my Gen2 and it made great power throughout the revs.

[Sl@Sh]

Any clear evidence for this long term damage?? I remember being told once that to much masturbation in the long term will be bad for me. But here I am middle aged and still grinning from ear to ear. Getting back on track though, I've just not seen any evidence other than assumptions and beliefs. Id love to see tangible evidence. Don't get me wrong, you're all probably correct, but there's no proof for it that I can see

10:40 too lean at mid range especially at 6-7k rpm 14.5~ is way too lean at WOT and dangerous, full exhaust + stock filter. Keep in mind short exhaust as brocks will have different AFR at top.
Check moore mafia videos, same story...
Another bad example with mail in ecu flash:

[Dr John]

I remember being told once that to much masturbation in the long term will be bad for me. But here I am middle aged and still grinning from ear to ear.

Me too, but I can't see the words on this forum without glasses.