BimmerFest BMW Forum banner

exhaust noise

1K views 1 reply 2 participants last post by  sjhwilkes 
#1 ·
I was driving my friend's new mini S, when I noticed a strange noise(put put), similar to the ones in Go karts from the exhaust at around 3000 rpm. I want to say it usually happened while downshifting or when I let off the gas pedal.

Is this normal?
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top