Reply To: ECU FLASH TUNE. GT650R Forums 🚦 HYOSUNG CULTURE 😃 General Chat ECU FLASH TUNE. GT650R Reply To: ECU FLASH TUNE. GT650R Jan 30, 2025 at 6:42 AM #18770 JacobMember Topics: 3Replies: 3 I’m also keen on the tune mate! Hopefully you’re still active here