Hi Steve, Thanks for your response & observations - Love the pictures of your early M3W, has a great look with your driving lamps & custom exhaust. My M3W is also early (very) no 004 in fact. I don't know if my ECU is locked or not - do you know how I can tell?

Richard, Thanks for your response - my want to change it is not really to make it any louder, although if that is a consequence of removing the baffle - thats fine. I really wanted to make the crackles and bangs occasionally visible

I seem to remember reading here that the engine performs better with a little 'back pressure' ?? If I remove the baffle there is no putting it back (for me).

Perhaps I could drill a hole to two leaving the wadding in place.

Any thoughts

Thanks
Andrew

M3W
986 3.2S
Frogeye
Midget 1275
BMW i3S
Tesla Y
New Ionic 5N
BMW R12 Nine T
BMW K1300S
Jet 200