Apologise if this has already been covered - I have scanned through but couldn't see it. I need to to keep a stock look of the bike for £££'s purposes. Thinking of just a Leo Vince de cat £300 ish, and leaving standard pipes on, does anyone know on this model, dvt, if it will then need a re flash or power commander please? Or can the stock ecu "learn" the change? Many thanks