Powerhouse Cycle & Dyno - Another great showing of the S&S 475 cam in a M8. Exhaust is soft on the bottom but comes alive on the finish for sure. Real big
NEW STUFF ALERT - Street Legal 475 Cam/Calibration for M8 Touring Models
M8 114 cam upgrade to an S&S 475...Super easy project to take on yourself! : r/Harley