exhaust options

[Vintage Veloce]

So... I have a 2020 Svart, and I have been planning on modding the exhaust. Whatever I do, I plan on KEEPING a catalytic converter. This is different from what most people do, but it's my plan and experiment. I'm all about reducing weight and I think the premuffler/chamber is a much heavier thing than the cat. And I like being nice to the environment and I also think the cat reduces the volume a lot. I intend to find out. I'm also keeping the stock airbox, snorkle, airfilter and lid, as that will hopefully keep the EFI and A/F ratio happy. I'm not chasing HP on a low power bike, this is all about weight, ground clearance and looks. And a little about sound.

First I was just going to get the 2020+ Competition Werks chamber delete and install that.
But I missed the ground clearance advantages the 2019- bikes had with the side exit header,

So, After a bunch of eBay, AliExpress and friendly forum member purchases, I have accumulated the parts for too many exhaust options.
I need to choose:

a) Keep the 2020 header that goes under the engine and install the comp werks 2020+premuffler delete and use my CF muffler. Then I'd likely get a better 390 Adventure skid plate.
benefits: no shock / cat clearance/heat issues. easier to install.
negatives: less ground clearance, need to find a skid plate, I'm just hoping the 390 Adventure ones fit.

b) Install the 2017 header and cat and install the comp werks 2019- premuffler delete and use my CF muffler. Try to find skid plate that fits.
benefits: more ground clearance, better looking header.
negatives: shock / cat clearance/heat issues possible, more work to install having trouble finding a good easy to fit skid plate.

Any opinions?

 

[Dan00Hawk]

Are you riding in areas where you need more ground clearance? I've scraped a tall curb on my 2020 that I wanted to see if I could clear, and that's really it. Other hard pack trails/gravel roads are about all I ride when I go off road, and I'm not going over logs or hard-core trails.

So, unless you really need the ground clearance, I'd go with option A.

 

[BISavage]

Using an aftermarket muffler, will give you the option to use an after market Cat (not sure if it can be done with the stock muffler )

Then you would technically be able to choose how much cat you need / like.

This option would work with the 2020 Cat delete / chamber delete / after market muffler.

This is the one in my GPR High level vs. Stock:

 

[BISavage]

So, unless you really need the ground clearance, I'd go with option A.

Agree with Dan00Hawk, most straightforward route.

Also the only option to keep the stock emissions standards.

Upside: arguably the "best" sound.
Downside: 5 lbs.

 

[rossi46]

So, unless you really need the ground clearance, I'd go with option A.

This is how I think about it, also. I did a little bit of dirt road riding the other day, up past some gorgeous horse farms and estates. I'd like to try something a little more adventurous at some point, but don't ever see the need for the ground clearance of a true ADV bike.

I also selfishly want the OP to install the CW '20 chamber delete since I've been eyeing it and am unsure if it's worth it I would also keep the cat and install the Akra exhaust (or maybe Arrow).

 

[MDsvart401]

This is how I think about it, also. I did a little bit of dirt road riding the other day, up past some gorgeous horse farms and estates. I'd like to try something a little more adventurous at some point, but don't ever see the need for the ground clearance of a true ADV bike.

I also selfishly want the OP to install the CW '20 chamber delete since I've been eyeing it and am unsure if it's worth it I would also keep the cat and install the Akra exhaust (or maybe Arrow).

If you’re interested, I did the CW chamber delete and the Luis Moto big battle exhaust and the combination sounds fantastic. not as loud as the Coffman exhaust I tried earlier, but just as deep. Much cleaner sound. You can see a clip of it here if you like:

Victor on Instagram: "Video clip of my 2020 Husqvarna Svartpilen 401 with a mid-chamber delete from Competition Werkes and Big Battle exhaust from Luismoto.it"

13 likes, 2 comments - 20svart401 on June 2, 2021: "Video clip of my 2020 Husqvarna Svartpilen 401 with a mid-chamber delete from Competition Werkes and Big Battle exhaust from Luismoto.it".

www.instagram.com