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Remove Cat without cutting Header?

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  #1  
Old 06-03-2011, 02:44 PM
MikeRX MikeRX is offline
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Join Date: Feb 2011
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Default Remove Cat without cutting Header?

Has any tried to use a flexible shaft with a auger bit to chew up the cat material instead of cutting the header open?

I know you won't be able to get 100% of the material out, but imagine with the bulk of it gone, you would still get the heat reduction..

thoughts?
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Old 06-03-2011, 03:04 PM
kccustom kccustom is offline
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Location: Kansas City, KS
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It would drive me crazy thinking about the bits that stayed in blocked by what ever was left over.
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  #3  
Old 06-03-2011, 03:53 PM
1Canuck 1Canuck is offline
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Location: Coastal, BC
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I took off the header, put in vice and used a 1" hole saw on a 12" extension. I did drill quite a few 1/4" holes as well. I started with a larger hole saw but found it was hard to position. the one inch on the extension worked very well. of course some long screw driver work was involved. on completion there was only marks left on the inside wall.
be prepared for the bit to bind, and don't breathe the dust.
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Old 06-03-2011, 04:15 PM
03dragonRK 03dragonRK is offline
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The mechanic at the dealer I purchased my bike from told me that he uses a long rod to punch out the cat. He said that some is left in the corners.
Me I just cut it in half and cleaned it all out. It cost me $20 to have it welded back up.
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  #5  
Old 06-03-2011, 04:31 PM
xkvator xkvator is offline
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not a good idea...pieces can be sucked back into the engine...reversion...

i think the best way is the way JCTURBO did his...do a search...
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Old 06-03-2011, 04:38 PM
JC Turbo JC Turbo is offline
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Thanks Xkvator.

Here is what I did.

http://www.hdforums.com/forum/tourin...with-pics.html
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  #7  
Old 06-03-2011, 05:37 PM
103 sedona orange 103 sedona orange is offline
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Location: Sacramento Ca
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A friend did his without cutting. I never asked if he got all of it out. It could be a pain in the *** doing it that way.
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  #8  
Old 06-03-2011, 08:38 PM
renlan renlan is offline
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Noooooooo! Dont do it. Cut the pipe and clean the cat out completely. You are asking for trouble that thing will leave all kinds of debris behind if you dont.
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Old 06-03-2011, 09:29 PM
Kilokato Kilokato is offline
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I checked out JC Turbo's link....nice....What performance gains, sound differentionals did you get???
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  #10  
Old 06-03-2011, 10:47 PM
mcain49 mcain49 is offline
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I figured if I'm going all the trouble to remove the headpipe, I want every damn bit of it gone. Wasn't that big of deal to cut the pipe in half, remove cat and weld it back up. Did mine for under $40 in one afternoon.
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