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09-10-2006, 02:48 PM
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Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Just wondering if I was to get a new catback system, either a better flowing 2.5" or 3" single system would I need a retune? The current 2.5" single system I have atm is very restrictive as it has a dodgy muffler and a hotdod that is smaller than the rest of the system.
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07 Renault Sport Megane F1 Team R26 #1397
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Unichip + new exhaust = retune?
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