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2018 Adventure Sports DCT
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🤔 ummmmmm.
I’m pretty sure that’s not installed properly.
JK
From what I’ve read no re-mapping is needed, but of course they recommend it to “get the most out of the new system “
So then it’s up to what you want out of your AT.. But if you have a DCT you can’t Dyno it.
 

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Having done a full system, and a dynojet and a dyno tune on different bike, I feel like the cost isn't worth the outcome. I have heard the sound of the AT with a Yoshimura slip-on and feel like the investment of the slip-on just for the sound is worth it.

But to answer your question, I would go with the dynojet AND the auto tuning module. I have had good results with those products. I have not had any experience with the other brands.
 

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A Dobeck Performance Electronic Jet Kit might get you where you need to be as far as tuning for the extra flow. It includes the O2 bypass module with the kit. It's just 2 resistors in a plug at the O2 harness.

It doesn't require a computer and is much cheaper than a lot of the tuning options out there. That's why I settled on it. I don't want to have to break out the laptop for each tune each adjustment I need to make or have to buy extra modules to change my mapping on bike.

So far, I find it pretty easy to use. I'm basically stock and just wanted to sort out the low throttle galloping I experienced due to it running lean. A couple presses of a button when acting on the appropriate load/rpms phase (Green section per the manual) and I've settled my issue.

I'm going to tune it further on during the next long trip I have.
 

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Discussion Starter · #5 ·
A Dobeck Performance Electronic Jet Kit might get you where you need to be as far as tuning for the extra flow. It includes the O2 bypass module with the kit. It's just 2 resistors in a plug at the O2 harness.

It doesn't require a computer and is much cheaper than a lot of the tuning options out there. That's why I settled on it. I don't want to have to break out the laptop for each tune each adjustment I need to make or have to buy extra modules to change my mapping on bike.

So far, I find it pretty easy to use. I'm basically stock and just wanted to sort out the low throttle galloping I experienced due to it running lean. A couple presses of a button when acting on the appropriate load/rpms phase (Green section per the manual) and I've settled my issue.

I'm going to tune it further on during the next long trip I have.
Excellent, I really appreciate your feedback on this.
 

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CRF1100 ATAS ES DCT
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I am thinking about a ECU flash not for more power but smoother working between 3000-5000 rpm. This is the range of the environment measurements and the engine is reduced in that area. Beside of that you will get approx 7% more power and torque. Fuel consumption is in most cases a bit lower or equal
 

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Discussion Starter · #7 ·
I am thinking about a ECU flash not for more power but smoother working between 3000-5000 rpm. This is the range of the environment measurements and the engine is reduced in that area. Beside of that you will get approx 7% more power and torque. Fuel consumption is in most cases a bit lower or equal
I put the exhaust on and I am quite pleased at how well it fuels without a tune. It definitely needs one, but for the time being it feels quite good. I don't know how the adaptive parameters are re-set in a Honda ECU, but I disconnected the battery for a few minutes, then started it and let it idle until it came up to full operating temperature, then the next day I rode it at partial throttle around town and it works well. Left the spark arrestors in, it is still a bit loud but not awful. 11.5lbs from 23.5, which was 90% of why I did it, and holy crap it looks great.
 

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I had good luck with a Dobeck tuner on another bike. It wasn't super granular but really worked well, cost a lot less than the Dynojet option and much simpler to plug in and make work.
 

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Discussion Starter · #11 ·
FYI after 2,500 miles, I must say that this system fuels quite well without any fuel map modifications. It DEFINITELY likes elevation, so certainly I will be getting it sorted, but It isn't THAT much of a difference for me to be worried about creating issues. All I had to do was remove the cables from the exhaust valve actuator, plug in the stock lambdas, go through the above mentioned warm-up procedure, and then ride the crap out of it!
 

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2020 ATAS Manual
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FYI after 2,500 miles, I must say that this system fuels quite well without any fuel map modifications. It DEFINITELY likes elevation, so certainly I will be getting it sorted, but It isn't THAT much of a difference for me to be worried about creating issues. All I had to do was remove the cables from the exhaust valve actuator, plug in the stock lambdas, go through the above mentioned warm-up procedure, and then ride the crap out of it!
Hi QFW181, how're you getting along with the system now that a few months have passed?

I'm curious myself for the weight savings...do you think it runs lean without any remapping?
I'd also be interested to know whether you think the fit is much different to the stock system. I'd be a little worried that it wouldn't fit under my Outback Motortek skid plate. How would I know before I've spent the cash? Haha.

Completely agree that it looks great!

Ben.
 

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Akrapovic...there is no other.

It has been my experience with every bike I've had that received an aftermarket exhaust, the fueling is too rich. Maybe someone could put out a product that removes/modifies the stock intake snorkels/airbox?
A lot of dirt bikes that were also made for the street have *restrictive intake snorkels. Simply removing them, with the addition of a free-flowing exhaust, put the fuel mapping right back where it needed to be.

*Aren't sound level mandates grand? :rolleyes:
 

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Discussion Starter · #14 ·
Hi QFW181, how're you getting along with the system now that a few months have passed?

I'm curious myself for the weight savings...do you think it runs lean without any remapping?
I'd also be interested to know whether you think the fit is much different to the stock system. I'd be a little worried that it wouldn't fit under my Outback Motortek skid plate. How would I know before I've spent the cash? Haha.

Completely agree that it looks great!

Ben.
I put on this system at ~3,000 and now have ~11,000 miles on it. I rode it to Texas and back from Oregon last October and then various trips around Oregon. It works exceedingly well, but certainly runs better at elevation as it is a bit lean. That said, it isn't "pop and burble" on the over-run lean, just a little underpowered lean. I have made no efforts to find a mapping/fueling solution as it works so well. It fits well within the confines of the stock exhaust from the header to the footpeg, nothing from SW Motech hits it. The exhaust collector would hit the SW-Motech Pro Carriers, but we have now modified them to suit. It has gotten quite loud with time, and I am not going to lie I like the bark more than I thought I would. I kept the silencers/spark arrestors in the tips because I don't want it loud and I wanted to keep it as restricted as possible to avoid the fueling issues. If anyone has come up with a good fuel mapping solution since last year, let me know.
 

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I put on this system at ~3,000 and now have ~11,000 miles on it. I rode it to Texas and back from Oregon last October and then various trips around Oregon. It works exceedingly well, but certainly runs better at elevation as it is a bit lean. That said, it isn't "pop and burble" on the over-run lean, just a little underpowered lean. I have made no efforts to find a mapping/fueling solution as it works so well. It fits well within the confines of the stock exhaust from the header to the footpeg, nothing from SW Motech hits it. The exhaust collector would hit the SW-Motech Pro Carriers, but we have now modified them to suit. It has gotten quite loud with time, and I am not going to lie I like the bark more than I thought I would. I kept the silencers/spark arrestors in the tips because I don't want it loud and I wanted to keep it as restricted as possible to avoid the fueling issues. If anyone has come up with a good fuel mapping solution since last year, let me know.
Suggest a Rapid Bike Evo as i did. on my two 1100 with a Full Akrapovic
Dobeck Performance EJK is Not available for the 1100
 
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Discussion Starter · #17 ·
You should be able to add a Dobek Performance EJK and tune it whenever, wherever.
I had contacted them last year in August and they didn't have one for the 1100 yet, might try again. Really not needed so I haven't searched it out since I got the bike built.
 

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I put the exhaust on and I am quite pleased at how well it fuels without a tune. It definitely needs one, but for the time being it feels quite good. I don't know how the adaptive parameters are re-set in a Honda ECU, but I disconnected the battery for a few minutes, then started it and let it idle until it came up to full operating temperature, then the next day I rode it at partial throttle around town and it works well. Left the spark arrestors in, it is still a bit loud but not awful. 11.5lbs from 23.5, which was 90% of why I did it, and holy crap it looks great.
Does anyone have any idea how much louder than stock this is? It looks great, it may sound fantastic, but my usage case necessitates stock or close to volume levels.
 

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Akrapovic's website is showing products for the CRF1100. That wasn't the case a month or so ago.
This is the slip-on...
Scroll down about half way for sound bytes. I closed my eyes. The level does not seem louder but the Akra has a crisper/sharper bite to the note and there is mild/minor burbling down low. It hints at what I would expect from a "performance" sound.
The cool thing seems to be the mechanical exhaust damper/valve. I'm sure if you wired it open, it would make a lot more noise and not pass the strict EC/ECE/CARB RP/EPA standards that it claims to meet.
Not a lot of performance gain, maybe 1hp in the midrange, but that fills a midrange dip in the stock dyno curve...exactly the kind of work Akrapovic seems to focus on as opposed to making outright power. If you'll notice, this slip-on makes 1 less hp at peak while filling in where it's missing most everywhere else. A good fuel mapping tune would manifest its full potential, but it's not necessary.
It's 3lbs lighter than the OEM muffler.
I saw no specs on decibel rating; the stock is 91db according to Akra's decibel meter.

Going to the full system's page and giving it a listen, again it doesn't sound noticeably louder, but it is. It has more and deeper "growls" and I expect, at upper rpms with full throttle, it will howl rather nicely.
It has a db rating of 104.
 
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