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Thanks for replying yall. I have read and taken in some of your experiences, opinions. I feel like the combination of deleting the 3rd cat and the Invidia N1 is most likely causing he raspiness. When he was running the OEM front pipe there was no issue/rasp whatsoever so its definitely the catless front pipe.
He dropped in a K&N filter and as mentioned the catless but resonated invidia front pipe so we're going for a tune revision at the dyno this week. We'll see if anything changes and will report back... stay tuned...
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