Gutting Stock XJ650 exhaust...

Tried searching, but couldn't find a "how to" on gutting stock XJ650 muffler pipes.

I was thinking of using a 3" hole saw on a drill to make a nice cut out on the back end of the pipe and then go from there. I think the small lip left might add some nice sound presence. I don't wanna go and cut without knowing how much of a PITA removing the rest might be. Anyone have a decent schematic of the pipe internals?

Any input would be greatly appreciated.

 

I've got a set of 650 mufflers with holes drilled in them already. If yours are still bone stock and in decent condition, I'll trade you... I'd even gut them for you...

 

I don't need a dogs nose to smell your sarcasm...

Sorry I asked. Thanks anyway.

 

??? Ok, I'm confused. No sarcasm was implied...
I'd just like to save a good set of silencers if possible. I am quite serious about swapping you for yours. I'll shoot you pics if you might be the slightest bit interested. The holes are drilled in the back plate, approximately three 1/2" diameter holes. I bought them in that condition (missed the holes in the photos the seller posted) and don't want louder sound. If this can work for you, all the better. I figure the holes would let you see the baffle system better. I know there is a perforated pipe running up in there but as to whether or not it is welded on the other end, I don't know. As for making the cuts, I have a full service machine shop available to make nice, clean holes that look good.

 

I doubt you would want mine. They had several small rust holes on the bottoms of them that I repaired with sheet metal.

 

Ah... sounds like they are good and ripe for hacking. Good luck with those and let us know what changes/improvements you experience.

 

Well, I didn't go nuts on it, but am pleased with the results I got. I took a 3 1/4" hole saw to the back of the pipe, then weaseled out the small center pipe with a pair of pliers. That way it left me a small lip I could weld a plate to if I didn't like it. I rechecked with my color tune plug and all is well. Very little change in back pressure, but a decent change in overall sound. Not overly loud at all. Quite pleased actually.

I'll post some pics tomorrow, and maybe see if I can get my camera to capture a sample of the sound.

 

How bad was it to gut then out?

 

Zombie thread!!!!

Back from the dead!

Cory, the guy who gutted his pipes hasn't been around for at least 4 years.
It is admirable that you are adept at searching this sight so well and finding archived information.
I would recommend that you start a new thread and add a reference link within it - it would probably prevent any frustration in waiting for a response that may never come.

Something like this:
"Hey guys, I've been thinking about changing the tone of my pipes. I saw this old link about gutting them (http://www.xjbikes.com/forums/threads/gutting-stock-xj650-exhaust.27777/) anyone else try this or something similar?"