Catalytic converter.

[awa355]

My 2008 CBF250F Honda single has a catalytic converter as part of the exhaust. The bike is extremely muted and I wondered if it was possible to remove the thing and give the bike a bit nicer exhaust tone. Any advise??

[Conquiztador]

My 2008 CBF250F Honda single has a catalytic converter as part of the exhaust. The bike is extremely muted and I wondered if it was possible to remove the thing and give the bike a bit nicer exhaust tone. Any advise??

I am sure someone else on here has a more technical definition of them. But my understanding is that the chamber is set up to remove toxins from the exhaust fumes by coverting them in a chemical reaction inside the converter. Different precious metals are used to get this to happen.

If you remove it you might have to tune your bike to make it perform as the bike would be tuned to work with the converter. But often you would find a few additional hp's after they are removed.

On single cylinder 250's with carburettors I have simply cut them off and welded a piece of tube on to the exhaust pipe. Tend to get a better sound and run a little stronger too...

[awa355]

Thanks for your advise. My muffler fits to the exhaust pipe with a four stud flange. I would have to cut that off if I want to fit a slip on muffler. That might stuff me up for re-fitting the original. Would a single carby need to be retuned all that much?

[Dirty_Harri]

I have only ever removed a CC in a vehicle. This was a difficult task requiring patience and time. It probably isn't as arduous where motorbikes are concerned but you will need some oil to dampen the asbestos cone and a mask- you don't want to inhale that stuff!

Good luck

Gen.

[awa355]

I am getting an after market muffler fitted. I will be able to bolt the original back on for a wof if needed. I ran it with the original muffler removed and what a difference. The bike was so much more responsive and sounded lovely. Just a bit loud tho. The original weighs 5kg. I was stunned by the weight.

[Pixie]

I have only ever removed a CC in a vehicle. This was a difficult task requiring patience and time. It probably isn't as arduous where motorbikes are concerned but you will need some oil to dampen the asbestos cone and a mask- you don't want to inhale that stuff!

Good luck

Gen.

Not made of asbestos.
It will be either a ceramic or metal matrix carrying the catalyst.
Ceramic can just be broken up if it can be reached with a pokey thing.
Metal is a bit more difficult.