Quote:
Originally Posted by FR-S Matt
This would be very quiet, but you wouldn't see really any gains going into a restrictive overpipe.
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I dont think that the overpipe is a major factor here and will make a real gain noticeable on a N/A car at all with this setup. If yes may be 1-3hp difference max.
The stock front pipe have a cat on it and should normally help reduce the borla uel headers noise a bit but will also reduce the exhaust flow and so the hp by the way.
I'm pretty sure that the combo of a Perrin resonated cat-back + borla UEL headers would be a perfect match and perfect music to my hear.
I like what I saw here on the video but for me it is a bit too noisy for long term use.