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Discussion Starter #1
The akrapovic headers been laying in my living room for 3 months.
I was hoping dynojet will come up with something for our NSC but riding season just started where I live and I wanted the headers installed.
because there is no word on power commander, rapid bike it is.

1st impression: bike became loud, very loud! i have the smaller akrapovic muffler.
power on the other hand was restored (4k+ rpm). I no longer need to downshift to 5th in the highway for overtaking. this is a torquey motor, I had similar feeling in my previous '13 CB1000R with intake/exhaust/PCV. although no top end rush like my '13.
fueling isn't ideal,, probably needs more riding time to sort that out?

unfortunately, bike now in the workshop to revert back to stock headers. this is only due to the loud exhaust. even with earplugs,, it's too loud for me.
while the added power in the mid range is a plus, I still prefer a quieter bike :)
did I mention the bike became very loud?

hope this helps..
 

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Hahaha...yep....they do tend to be a bit loud don't they?
Was it still too loud with the baffle in?
 

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Vampire, you should have received a baffle with the original can.
Before you revert everything back to stock why not try fitting a baffle?
They're available as a part from Akrapovic.
Just a thought, be a lot easier than swapping everything.

If you still want to swap, can you pm me please?
Ta!
 

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Discussion Starter #6
Vampire, you should have received a baffle with the original can.
Before you revert everything back to stock why not try fitting a baffle?
They're available as a part from Akrapovic.
Just a thought, be a lot easier than swapping everything.
I have the shorty akra can, didn't come with a baffle.
Thinking about purchasing the tall can.
You think the sound will be civilised with the baffles in?
 

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Discussion Starter #8
Should be heaps quieter.
Fuelling may require some attention though.
Thanks for the advice.
Will go ahead and order the tall akrapovic muffler. I just confirmed it comes with welded baffle.

But I thought the rapid bike will take care of fuelling!
 

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I'm extremely disappointed with DynoJet and the extremely slow development of the fuelling solution for the NSC. They had my bike over a year ago as a test base. Essentially nothing has happened other than a few dyno runs.

Interesting to hear your thoughts on the Rapid Bike module. I've now heard nothing but good feedback about it. I think it could be the way forward for me too. Just so you know I have a full Akra exhaust system (with the Road end can that does come with a db baffle. It is secured with a bolt that has a small tack weld. It can be removed but a hole needs to be drilled into the carbon cap to access it). Full system and end can with the baffle installed has a great sound. Not particularly loud at all. I've done 400 mile days and sound has not been an issue.

Where did you get your Rapid Bike module from?

69605783_2288533294741986_8438337184347455488_o.jpg
 

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No fueling issues for me...

I'm extremely disappointed with DynoJet and the extremely slow development of the fuelling solution for the NSC. They had my bike over a year ago as a test base. Essentially nothing has happened other than a few dyno runs.

Interesting to hear your thoughts on the Rapid Bike module. I've now heard nothing but good feedback about it. I think it could be the way forward for me too. Just so you know I have a full Akra exhaust system (with the Road end can that does come with a db baffle. It is secured with a bolt that has a small tack weld. It can be removed but a hole needs to be drilled into the carbon cap to access it). Full system and end can with the baffle installed has a great sound. Not particularly loud at all. I've done 400 mile days and sound has not been an issue.

Where did you get your Rapid Bike module from?

View attachment 46914
I have the exact same setup as you - the full Akra system with the Road end can. I don't seem to have any fuelling issues, from a throttle action perspective, but mine does seem to run a little rich... I smell of gasoline/oil after a decent run, especially my riding jeans. Akra has a CPU map for the full system, but my dealer doesn't have the gear to remap the ECU. Anyone had that done?
 

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Discussion Starter #11
Crispy said:
I'm extremely disappointed with DynoJet and the extremely slow development of the fuelling solution for the NSC. They had my bike over a year ago as a test base. Essentially nothing has happened other than a few dyno runs.

Interesting to hear your thoughts on the Rapid Bike module. I've now heard nothing but good feedback about it. I think it could be the way forward for me too. Just so you know I have a full Akra exhaust system (with the Road end can that does come with a db baffle. It is secured with a bolt that has a small tack weld. It can be removed but a hole needs to be drilled into the carbon cap to access it). Full system and end can with the baffle installed has a great sound. Not particularly loud at all. I've done 400 mile days and sound has not been an issue.

Where did you get your Rapid Bike module from?
the akra road end can should arrive in 2 weeks time. no plans in removing the baffle.
I got the controller from Rapid Bike US website

PiersD said:
I have the exact same setup as you - the full Akra system with the Road end can. I don't seem to have any fuelling issues, from a throttle action perspective, but mine does seem to run a little rich... I smell of gasoline/oil after a decent run, especially my riding jeans. Akra has a CPU map for the full system, but my dealer doesn't have the gear to remap the ECU. Anyone had that done?
all you need is Rapid Bike. no remap available for our bike yet.
 

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I was sure I'd seen something on the Akropovic site about a map for their exhaust....

Its here - its a downloadable map for the Rapid Bike Evo.
 

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Discussion Starter #14
I have reinstalled the Rapid Bike + akra headers and long muffler.
the most important thing was to bring down the sound and the baffled muffler does a great job.
compared to the small akra can,, it's day n night.


  1. stock: silent (3/10)
  2. stock headers + short muffler: great usual civilized I4 sound (5/10)
  3. akra headers + short muffler: obnoxious (%#[email protected]/10)
  4. akra headers + long muffler with db killer: quieter than i anticipated, little louder than option 2. but the sound is not like a usual I4. there is some trumpet noise. (7/10)
done 200 miles with the new setup and loving it. great smooth fueling all over the rev range.
 

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I have the akra headers + short can + rapidbike. It is like you say, loud, very loud, a bit too loud really. It’s the exhaust drone along the highway which gets me, to the point I’m considering the longer akra can, but I do like the look of the shorter one and just can’t justify dropping another $1k AUD or so on replacing it
 

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I have the Akra headers, long pipe and I removed teh baffle by unriveting the tip off the can. I love it. Yes its loud but this isnt a long distance cruiser in my opinion. Ear plugs do wonders and as long as there are no noise laws, its no holds bar.

I am planning to get a rapid bike, and in the long cold winters of Wisconsin USA I have a lot of time to sit and do nothing. I got tank all the way undone to the fuel line, but I have no clue how to get it off. HOW DO YOU GET THE FUEL LINE OFF. I already removed some white retaining piece of plastic and I can see to teeth like clips inside the black plastic locking connector on the hardline into the tank but i have no idea how to press or pry on these fingers to get the line off.

Any help would be appreciated.
 

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I have the Akra headers, long pipe and I removed teh baffle by unriveting the tip off the can. I love it. Yes its loud but this isnt a long distance cruiser in my opinion. Ear plugs do wonders and as long as there are no noise laws, its no holds bar.

I am planning to get a rapid bike, and in the long cold winters of Wisconsin USA I have a lot of time to sit and do nothing. I got tank all the way undone to the fuel line, but I have no clue how to get it off. HOW DO YOU GET THE FUEL LINE OFF. I already removed some white retaining piece of plastic and I can see to teeth like clips inside the black plastic locking connector on the hardline into the tank but i have no idea how to press or pry on these fingers to get the line off.

Any help would be appreciated.
There is a retaining clip (piece of plastic) that secures the quick disconnect hose, once that is removed the hose should simply come off. Similar to the attached by memory.

7-89-ID6-Fuel-Pipe-Quick-Connector-7-89mm-Straight-180-Degree-Fuel-Pump-Assembly-Fuel.jpg
 
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