M Performance Exhaust 35i
 

Anyone have any personal experience (or know of any better videos) with the M Performance Exhaust for the F15 35i? I found the following on YT, but only the one specifies X5 35i and the sound quality online can be difficult to capture.
Sounds good, but not sure if it's a 35i?:
https://www.youtube.com/watch?v=KnmLqVNTCGk
This sounds GREAT, but I believe it might be a 50i:
https://www.youtube.com/watch?v=3lh1U8xt6w4
And this is ok, and the one specified as a 35i:
https://www.youtube.com/watch?v=T5bdUPL69XU