Yep, that's my bike with the M4. The fit and finish is great! It's a little noisier than I expected but sounds nice. Power improvement? It seems to be a little more responsive but I'm not all that worried about the bike making more power. They are just 125's after all!Is that your bike with the M4 exhaust?
If so, how are you getting on with it? Notice any improvement in power?
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