Decat install blog post

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Nigel B
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Prompted by this thread, I refitted my decat pipe yesterday after a couple of months running with the cat, as I hadn't got round to removing it again after the MOT. 
 

Strangely enough, the issue I had with a sudden step up in loudness at 3000-ish rpm has completely gone! I can't understand what has happened there. Perhaps it has mellowed with use? Odd. Confused