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Discussion Starter #1
Hey guys, new to dukes new to this forum.

Just bought a 125 duke, changed the stock air and oil filters for k&n and upgraded engine oil to motul and upgraded to irridium ngk plug..

Blown away by the difference in performance

ill be looking to upgrade the exhaust system too, torn between akropovic and leo vince,
i think the leo vince sounds better.

Would there be an improvement in performance or just sound and look better??
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