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If you are asking about BW attachment kit for the spoilers, yes they will fit with an Arrow midpipe. I used both of them together. There is a slight contact with one of the brackets that I ground out a small oval and that cleared the contact. Not a big deal.
Yes, they work together.
I notice that some cat midpipes (e.g. Arrow) have a canister made into their body as opposed to just a straight pipe as shown by other (Chinese?) variants.
What is going on with that???? What’s in that bulge????  Educate me.
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Big singles like to have large exhaust volume. The cat adds this volume, and Arrow has added a small volume at the same location in an attempt to help. I don’t believe it has much effect, but the Akro exhaust has a pipe that has a huge mid-pipe section, and it seems to help with power production.
The straight-pipe sections seem to reduce power output.
Essentially, it is there to help with exhaust flow on the pulses.
I have NOT been able to find an Akrapovic mid pipe anywhere. Can someone please give me a link so I can view it and maybe order one????
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The akro comes in a full system, not just the cat. It’s not marketed for the Svart/Vit, but for the KTM 690. If you mount it, you will have an issue with the muffler mount – it is located for the 690.
But you can make it work if you want. This is a very expensive exhaust.
Good lord. That big tank under the motor is just an empty box??? My guess is it’s a pre-muffler with baffles.
I already have the spec’d Akra slip-on. Even with the baffle out, it’s too quiet. Hard to hear the thumper.
Maybe I’ll order a Leo V mid pipe and do all the other things that go with it.
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You are correct, it is a pre-muffler and has baffles internally. Performance wise, it’s shown to be the way to go. But expensive and heavier than the other mid-pipe options.
It is very quiet, even more than OEM. I drilled out the “db-killer”, and now it’s perfect. I had an Arrow system that was loud on acceleration, but fine on neutral throttle. It had the bulged mid-pipe.
I am selling both of the those if you are interested.
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