GYTR FMF Powercore vs Lexx Performance Exhaust
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I ran a lexx for a bit and was impressed at the power and how quiet it was. This was on a YFZ. Hard to beat for the price. FMF is good too, but I don't think they put out the best power in many cases. At least on 4 stroke applications. Probably close to power or a bit more than the lexx, probably a little higher quality fit and finish too.