Vintage Veloce
pro rider
Just found this and ordered it. Looks like an awesome weight reduction...
Chamber Delete from Competition Werkes for 2020, 2021 401
- Thread starter Vintage Veloce
- Start date
OP
Vintage Veloce
pro rider
I've always hated that resonator / chamber / breadbox thing.
aitormartin
expert rider
Nice! That should make it look a lot cleaner. Would love to hear a before and after
OP
Vintage Veloce
pro rider
I spoke to them and they said the new bikes have two cats, and you can leave them both in with this. I'm expecting the sound not to change much (I like the bike quiet), and say claim no jetting changes are needed either.
aitormartin
expert rider
Oh I didn't realize this was for the new model
BISavage
champion rider
Nice!
OP
Vintage Veloce
pro rider
Yay! Just got it the mail. I can't wait to put it on the bike, but it may be a couple weeks because I have a few projects in front of it.
mechamvmnt
new rider
Completed the Competition Werkes (CW) Chamber Delete on my Svartpilen 401 this past weekend.
It is a moderate level modification as you need to remove the entire exhaust system (header, muffler chamber and canister) as well as the skid plates which Husky calls a spoiler.
NOTE: I have the Akrapovic slip-on exhaust mod. It looks great, sounds ok but I wanted more sound.
I’m not a mechanic by any means, but have completed many moderate level modifications on motorcycles and Jeeps.
The instructions are minimal from CW, but as expected for an aftermarket purchase. Also, this is a newer part so no YouTube videos to use either. So, as a novice mechanic I supplemented information with the Husky Svartpilen 401 user manual. Also, that way, you have the torque settings after reassembly.
(The tarp is on top of blankets. Heated garage, but still a frozen floor in MN)
The most challenging part was the final step to remove the actual muffler chamber. The bolt “tube” was flush with the frame mounts so I had to slightly bend the frame mount, pop the muffler chamber with a hammer and…
When reassembling, make sure to keep the entire exhaust system “loose” until you get the exhaust system and the skid plates reassembled…then tighten everything. I had to readjust as the header pipe as it was fighting with the skid plates.
Here is a short clip: Competition Werkes Muffler Chamber Delete
NOTE: The smoke is the WD-40 ”seasoning“ the new CW pipe
UPDATE: I have since updated the exhaust to a Coffman‘s Exhaust Shorty. Posting is on the forum. I could NOT be happier!
It is a moderate level modification as you need to remove the entire exhaust system (header, muffler chamber and canister) as well as the skid plates which Husky calls a spoiler.
NOTE: I have the Akrapovic slip-on exhaust mod. It looks great, sounds ok but I wanted more sound.
I’m not a mechanic by any means, but have completed many moderate level modifications on motorcycles and Jeeps.
The instructions are minimal from CW, but as expected for an aftermarket purchase. Also, this is a newer part so no YouTube videos to use either. So, as a novice mechanic I supplemented information with the Husky Svartpilen 401 user manual. Also, that way, you have the torque settings after reassembly.
(The tarp is on top of blankets. Heated garage, but still a frozen floor in MN)
The most challenging part was the final step to remove the actual muffler chamber. The bolt “tube” was flush with the frame mounts so I had to slightly bend the frame mount, pop the muffler chamber with a hammer and…
When reassembling, make sure to keep the entire exhaust system “loose” until you get the exhaust system and the skid plates reassembled…then tighten everything. I had to readjust as the header pipe as it was fighting with the skid plates.
Here is a short clip: Competition Werkes Muffler Chamber Delete
NOTE: The smoke is the WD-40 ”seasoning“ the new CW pipe
UPDATE: I have since updated the exhaust to a Coffman‘s Exhaust Shorty. Posting is on the forum. I could NOT be happier!
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OP
Vintage Veloce
pro rider
Wow, that is a great writeup! It will be a real help when I install mine.
I think it sounds a bit "raspier" than stock in your video?:
Edit: I I just realized this sound clip is with the Akrapovic slip on! Very cool. I wonder how it will sound with a stock muffler.
Any chance you weighed any of the parts?
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BISavage
champion rider
I bet the turbulence through there creates a deeper sound and helps keep torque where it should be.
OP
Vintage Veloce
pro rider
Hmm, important finding:
The chamber delete will NOT workwith the stock muffler! with 2019- mufflers.
The stock muffler is a slip fit with a regular clamp. The resonator exit is a 51mm pipe.
The chamber delete exit is a 46mm pipe.
So, NO GO, if you want to use the stock muffler. A stock sleeve gasket is necessary to match the pipe sizes.
The chamber delete will NOT work
The stock muffler is a slip fit with a regular clamp. The resonator exit is a 51mm pipe.
The chamber delete exit is a 46mm pipe.
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BISavage
champion rider
Wait, what? That comp werkes thing should be 1 to 1 replacement. (See last sentence below)
OP
Vintage Veloce
pro rider
I didn't take pictures of mine while it was off, but note the difference between competition works mufflers for the 2019 and 2020:
2019:
2020:
The 2019- uses a flanged end, and the 2020+ is a straight slipon (with slots in the tube on the stock muffler) and a regular clamp.
So Competition Werks knows they are different...
2019:
2020:
The 2019- uses a flanged end, and the 2020+ is a straight slipon (with slots in the tube on the stock muffler) and a regular clamp.
So Competition Werks knows they are different...
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BISavage
champion rider
I am still not getting it...
Here is your 2020 chamber delete:
And here is my 2019 chamber delete:
Here is your 2020 chamber delete:
And here is my 2019 chamber delete:
OP
Vintage Veloce
pro rider
More research shows some of my statements above were wrong (I'll edit those).
The 2020+ is substantially different, and that is what has confused me.
There are no flanges on the 2020+ muffler / resonator connection like there are on the earlier 2019-.
2020+ Muffler pipe:
2020+ resonator box:
Above, I now notice that there is a "sleeve gasket" over the stock 46mm resonator box pipe. The ouside diameter of the sleeve gasket is approx 51mm.
"2020" chamber delete pipe is way too small for 2020 muffler pipe, without the sleeve gasket. A sleeve gasket is necessary.
So the chamber delete requires this 2020+ gasket. I think is is part number 94305050071. I haven't checked, but but new (and different) gasket may also be needed on the other side of the resonator.
However, 2019 style mufflers and end pipes will not fit the chamber delete nor the stock resonator without some modification.
The 2020+ is substantially different, and that is what has confused me.
There are no flanges on the 2020+ muffler / resonator connection like there are on the earlier 2019-.
2020+ Muffler pipe:
2020+ resonator box:
Above, I now notice that there is a "sleeve gasket" over the stock 46mm resonator box pipe. The ouside diameter of the sleeve gasket is approx 51mm.
"2020" chamber delete pipe is way too small for 2020 muffler pipe, without the sleeve gasket. A sleeve gasket is necessary.
So the chamber delete requires this 2020+ gasket. I think is is part number 94305050071. I haven't checked, but but new (and different) gasket may also be needed on the other side of the resonator.
However, 2019 style mufflers and end pipes will not fit the chamber delete nor the stock resonator without some modification.
BISavage
champion rider
You need a 2019 resonator/link for the 2019 slip on.
For your 2020 pipe, There Is one gasket on each side.
If you are careful they come off easily, just gotta be patient.
For your 2020 pipe, There Is one gasket on each side.
If you are careful they come off easily, just gotta be patient.
OP
Vintage Veloce
pro rider
Yup, I know know that. ;-)
This pushes me more to getting the whole 2019 pipe...
OP
Vintage Veloce
pro rider
I think that would be very hard, it's a thin long sleeve, not a thicker ring like the earlier bikes.
For now, I won't mess with it, I'm going to wait and see the parts I ordered from Aliexpress first....
BISavage
champion rider
Yeah, I keep lookin at the Tyga header thinking, if I only had a 2016 duke pipe...
RobWCanada
expert rider
did you ever install this with the stock muffler? If you did, was there any sound diff at all or just for looks? Like you, I kinda like it quiet, but wouldn't mind a bit of tone difference.
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