Thread: M4 Stock Exhaust => M Performance / How Inside Change ?
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      10-02-2022, 06:42 AM   #66
WarMachineM3
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Drives: M3
Join Date: May 2021
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Originally Posted by whoop_ass View Post
Some progress so far and some welding porn

no idea what it will sound like but we will pack it tight to keep tone down with the valves closed.
Do you still have this muffler?
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