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Discussion Starter · #1 ·
Just wanted to share my experience. I put an M4 exhaust on my 2014 FZ09 and sent the CPU out to Vcycle to have him reflash and accommodate the new exhaust system. Despite him being all the way up in Washington the whole process only took a week and I had my bike back on the road just as soon. The throttle is now smooth instead of jerky and the bike runs cooler and appears to have increased fuel efficiency as well, not to mention more power. I have been riding the newly tuned bike for a few weeks now and I am still mesmerized at how different and improved it feels compared to stock. The ridiculously loud M4 exhaust is loads of fun as well. This whole process definitely breathed new life into this bike and now I love riding it.

I would highly recommend VcycleNut for anyone who needs tuning done at a fair price with extremely fast service and turn around time.
 
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