XR400 stock baffle length anyone?

Hi guys, the baffle in my xr250 is really stuck in there and I don't want to do drilling as I figured if I ever get derego'd I will keep the original muffler,
I ended up purchasing the xr400 spark arrestor (I know I will need to modify the holes but I am guessing it will breathe better as its longer?) my issue is it doesn't come with a baffle and its longer so I have no idea what size pipe I can get made up at an exhaust shop, I found the size suggestion on one of the threads was 34mm outside diameter and 24mm inside diameter and I am thinking stainless steel for durability and I will also be going for a 280kit eventually in the future so I would like to keep the pipe too, I did all the other mods to uncork and will be rejetting to 135/48 after this so if someone could please get the length of the xr400 baffle for me and possibly any suggestions on how I should go about the insert for it I am all ears :)
Do you guys think the inside diameter will be right? and would it be getting the right amount of air exiting with this setup?

Edited by Eryk



Does this help?

Not really :/ I will have the spark arrestor part in a few days time I mean the baffle removable insert in the 96 version because I want to cut a pipe for it instead of the baffle or a vw tip

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