spare expansion chamber modding!

[nambo-trev]

hey guys just thought id share my chop up of my street pipe that came with my bike, i chopped it up today and ripped out the catalyst inside and am going to have a buddy re weld it for me and also cut off the extra air pipe coming off and seal it up. ill post a pic tomorrow of what it looks like back together and then a report on what the power is like compared to the pipe on the bike! the filter is friggin heavy, id say around half a pound.

 

[kelwar]

So how did this end up working out for you?

 

[iancp5]

Looking at it I'm not surprised it kills a 2 stroke!

 

[Keg]

I have cut one of these up and use it in events I think I might trash a chamber. It does not feel like the power is any different from the silver pipe and it looks like it has the same dimensions.

 

[GMP]

I can't see how it even functions as an expansion chamber with the cat taking up all the space.

 

[Bailey28]

My guess is that the bike would stop running once enough spooge clogged it up.

 

[gasgasman]

The catalyst traps heat, which burns off the spooge.

 

[iancp5]

I had one on my 200 when I got it. Didn't know it was a cat and was wondering why the bike was so slow. Then I twigged, put the other pipe on and the power doubled! Dunno why it had a cat pipe on it, it's a 2003!

 

[cdn280]

Looking forward to hearing about it after its back together. Thanks for posting the pic marking the spot you cut it. I need a pipe right now and could use this, or just keep it as a spare.

 

[Todd5774]

Don't always trust that mark my cat was a lot further up, tap your pipe first to find it.