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Gen 3 exhaust compatibility 03&07

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Guys, 

I have searched and cant find the answer I'm looking for.  I have both a 03 and 07 CR250.  I got the stock expansion chamber from the 07 that's in really good shape.  I had planned on putting it on my 03 to match with the newly powdercoated frame.

I tried bolting it on my 03 with no luck.

Did Honda change the expansion chambers between 02-04 and 05-07 so much that they wont interchange?

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The 02-04 models have a female end outlet exhaust that goes on an exhaust flange that is bolted the cyl..

The 05-07 models have a male end outlet exhaust that goes into the cyl..

Surprised you didn't see the difference while trying to bolt it on.

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4 minutes ago, H4L said:

The 02-04 models have a female end outlet exhaust that goes on an exhaust flange that is bolted the cyl..

The 05-07 models have a male end outlet exhaust that goes into the cyl..

Surprised you didn't see the difference while trying to bolt it on.

I did notice.  I guess what I mean to ask if the flanges were interchangeable to run a male end outlet on and originally female end outlet.

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53 minutes ago, gunters96lt1 said:

I did notice.  I guess what I mean to ask if the flanges were interchangeable to run a male end outlet on and originally female end outlet.

No.  The cyl's are different on the yrs. mentioned.  The 05-07 cyl's. don't have the exhaust flange.

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