[13M5F10]

Finally got around to doing this since I picked up my M5. It definitely improves the exhaust note at startup and cruising around. Will keep me satisfied until I get an exhaust system.

What I used

Flathead screwdriver
Band Clamps 1-13/16 to 2-3/4 Stainless Steel

While turned off, I wrapped the band clams around the actuator arm and its mount and started turning the screw. Once it the screw becomes harder to turn, I pushed the valve arm in to full open and screwed the clamp further until it was secured.

Here are the pictures. I'll post a video later.