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      11-01-2012, 01:10 PM   #194
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Drives: SB Pre-LCI 335i
Join Date: Aug 2011
Location: North London

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Originally Posted by tomz_335i View Post
I have it on.....mechanic promised me pics later of what he did, but I got a look inside. It sounds siiick. Lots of burbling and crackling without the drone. Sounds very nice when you rev the engine and very similar to a PE exhaust.

He took out all of the insulation and perforated piping, and removed the H pipe, so its basically a straight pipe setup running through the mufflers. For some reason, the addition of the muffler through the pipes eliminates the drone. FWIW, I do have my main cats on, with the secondaries deleted.

Video up later!
After watching the videos, I am impressed! The noise is awesome.
So what was the actual process involved?
Cut it in half and remove all the packing...and re weld?

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