Cats and valves exposed

[kate_brett]

Pictures - open / closed exhaust valve and catalytic converter.

 

[Petrus]

Looks quite restrictive that cat housing.
On many motorbikes the diameter of the pipe/housing is larger than
the header to avoid this.

 

[kate_brett]

Post cut header pipe , diameter does diminish minimally before O2 sensor , then expands before Cat.

 

[dfinkelsteinmd]

I have installed the Vance and Hines straight pipes on my FE but still not satisfied with the sound. How do I most easily access and remove the cats? I have done this on most of my bikes by just buying new headers but this does not look like an option with the R18.

 

[Petrus]

I have installed the Vance and Hines straight pipes on my FE but still not satisfied with the sound. How do I most easily access and remove the cats? I have done this on most of my bikes by just buying new headers but this does not look like an option with the R18.

 

[BER18 100]

On my previous R1200c, I bought exhaust pipes from Poland that had no cat. I'm at a loss as to what to do with my R18 since the cat is in the header pipe. That long drill is not something I would be comfortable using.

 

[Noelpolar]

On my previous R1200c, I bought exhaust pipes from Poland that had no cat. I'm at a loss as to what to do with my R18 since the cat is in the header pipe. That long drill is not something I would be comfortable using.

Then get a longer one.

 

[Petrus]

Then get a longer one.

 

[dfinkelsteinmd]

What about just removing the baffles in the aftermarket Vance and Hines slip-ons?