colint
Registered user
Thinking about opening up the XC exhaust and removing the cat anyone got a schematic of the exhaust so i knpow where to open up for best effect
X Challenge exhaust
- Thread starter colint
- Start date
There are some photo's on here that i took while i did the cat removal on my standard can, but i can't remember where i stashed them- it'll be somewhere in this section.
As for doing any other work? i wouldn't bother. If you want to go faster and get better throttle response get your hands on a remus header.
I've tried a scorpion can as well as the current full remus i have, and to be honest, the scorpion on it's own just makes more noise, but doesn't make you go any quicker. After 2 rides i took it off.#
HTH
Nathan
colint
Registered user
Cheers
just what I needed
Here's where I cut Colin, the cat will come straight out then with a bit of hack saw use. It's quite heavy but nothing that couldn't be sorted with us shedding a few pounds 
Get it welded back together by someone who can do stainless welding, not by the Stevie Wonder Welding Academy
Doesn't make much difference in reality, even to the sound. What does make a difference is the Remus free flow front pipe
I have a Remus end can but again, I think the original silencer without the cat gives a smoother, quieter ride with just the same performance.
Get it welded back together by someone who can do stainless welding, not by the Stevie Wonder Welding Academy
Doesn't make much difference in reality, even to the sound. What does make a difference is the Remus free flow front pipe
I have a Remus end can but again, I think the original silencer without the cat gives a smoother, quieter ride with just the same performance.
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colint
Registered user
It's quite heavy but nothing that couldn't be sorted with us shedding a few pounds
Cheers Micky I resemble that remark!
I just wanted to loose the heat gererated by the cat dont want to generate any more noise even though I am now nearly deaf! Will go down the route of the remus front pipe though.
Ta for the heads up.
Yes ... if you remember there's a thick asbestos(?) kind of spacer between the standard front pipe and exhaust. The Remus header widens out to the same diameter as the standard exhaust and does away with the requirement for that thickness spacer
I'm running the Remus header straight into the standard can with the Cat removed. I think it's smoother and pulls better than with the Remus Revolution end can fitted
I'm running the Remus header straight into the standard can with the Cat removed. I think it's smoother and pulls better than with the Remus Revolution end can fitted
Get it welded back together by someone who can do stainless welding, not by the Stevie Wonder Welding Academy
I just got my hands on some stainless arc welding rods, and then had a little practise to get the welder set right before i started on the can. simples
I just got my hands on some stainless arc welding rods, and then had a little practise to get the welder set right before i started on the can. simples
Did I mention any names
powroll
Registered user
Just a thought,
Would it be possible to break out the catalyst honeycomb using a screwdriver or is it really rock solid?
Would it be possible to break out the catalyst honeycomb using a screwdriver or is it really rock solid?
It would be easy to cut around it with a hacksaw!
Once you have the can upen it's easy to remove.
Don't think you could just poke a screw driver in the pipe and break it out. Not if you wanted to do a successful job.
The cat is in the front of the exhaust. To remove it you need to cut the weld, removing the tapered section from the front of the silencer.
levis
Registered user
Poking a screw driver in It is just a bad idea since the catalyst honeycomb hold radioactive substance and can induce some contamination.
powroll
Registered user
Larger vehicles use ceramic cores with precious metal catalysts , I dont think theyre radioactive unless BM have something unusual up their sleeve to save the planet ! !
I was sort of hoping that the core might be ceramic in which case a big screwdriver might just do it, without opening it up.
After very high mileages I have seen these cores break up by themselves and then end up blocking the exhaust.
I was sort of hoping that the core might be ceramic in which case a big screwdriver might just do it, without opening it up.
After very high mileages I have seen these cores break up by themselves and then end up blocking the exhaust.
levis
Registered user
Good point correcting me powroll.
I wasn't so sure myself. Just heard from a friend that cars catalytic exhaust when damaged could reject radioactivity but maybe no connection with handling a metal catalysts when cold.
powroll
Registered user
Just for the hell of it ,going for the cut n shut style decat next week described brilliantly on the other post.
Make a comparison to the GPr back to back see if any difference.
Sure the more open GPr pipe breathes better but we'll see.
Dyno would set it to rights but never really felt the bike needed that much more poke for its purpose.
Wear a mask just in case!
Make a comparison to the GPr back to back see if any difference.
Sure the more open GPr pipe breathes better but we'll see.
Dyno would set it to rights but never really felt the bike needed that much more poke for its purpose.
Wear a mask just in case!
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