[WallyM5]

I am installing these on my X5M today. 3" exhaust cutouts, I had cutouts on my E60 and it was the best mod I ever did. I am planning on running a vacuum valve tied to the M button to open and close the cutouts just like the flapper actuates on the muffler.

I would agree with most that strait pipe is the ultimate exhaust mod, but I like being able to stick a sock in it's mouth when needed. Leaving the V10 and coming to the S63 has been a challenge as the beast feels cold and heartless. Let's hope some passion comes back into my life again.....I miss my V10 howl.

I will do a before and after video when they are installed later this afternoon.