Mods to stock expansion pipe

blasterfied

Member
Nov 14, 2013
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Coal City, Illinois
Recently i started a thread about a baffle rattle in my STOCK expansion pipe. Awk08 gave me some good advise to cut a section out of the pipe and extract the baffle completely. then weld the pipe back up.

I have one concern, so i thought i would ask. Maybe someone has done this before.

Are the stock expansion pipe single or double layered at the "big bend"? Reason i ask is, if its double layered i need to make the first cut out much bigger, so i can make the 2nd layer cut slightly smaller so i can weld both layer back easily.

The sound the baffle makes when i shake the pipe, it doesnt sound like its thin or single layered. Just thought id ask.

And i know blaaster, jetting may be necessary I:I I have a 1 up main jet on standby.
 
the whole pipe is lined with a thin layer of packing material, held in place by steel mesh.
IIRC