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      03-23-2013, 11:50 AM   #5
buildbright's Avatar

Drives: F80 M3 MG
Join Date: Sep 2012
Location: Tampa, FL

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Originally Posted by dd1981 View Post
In chamber 3 yes that would be the way to go, just cut and replace with a tube and weld it back.

The difficult part would be re fabricating the section in chamber 1. It's not round, it's very much oval. Not saying its not possible, but I doubt it be cheaper then just welding each hole.

The underside plan is to open the muffler even further with my angle grinder so I have access to the underside.

I'm not saying this is going to successful but if I close off the perforated tube there will be a change in the exhaust note. I'm not even sure if it will be a good sound, it may be the most annoying thing we ever hear....but we'll all find out soon
The second chamber you want to keep that is the hemholtz chamber it's what kills drone. Taking out the the 1st and 3rd chamber like you said by welding the holes should work. Nice clean lines that is good angle grinder work.