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Hi guys,

already had a Trust PE2 cat-back system fitted to my R33 few months back & it sounded tuff coming in @bout 88dB once carbon had built up so not too loud nor quiet. Recently had the front section installed alla JJR front/dump teamed up with X-Force high flow cat...its gone quieter :(

Is this due to all of the new piping & it not having carbon etc build up as its only 2 days old? Or am i going to do the unthinkable & reverse all the hard R&D from Trust by removing that mid muffler? Thanx in advance.

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https://www.sau.com.au/forums/topic/186404-turbo-back-exhaust/
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Interesting Q. I would have thought that it would be louder for sure. I to have the same cat back, and have thought about making up a new center section without the middle muffler. Really though, i think its that last final cannon thats the big sound killer.

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