Quote:
Originally Posted by andy9188
Hi bobby if you are slightly technical and have all the tools you could do this quite easily. As pointed out by Phil200tdi who has a 335i I believe there are videos on YouTube regarding this. I think there will be a similar set up in the 335i boxes though. You just need to cut out the perforated sections or 3/4 of it to get the soundevel right
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Thank you wish u had pics of the before and after of the inside of the muffler so i can see what was done. but i will try this and post it