How do all,
I was just testing out the recording feature on my new phone, so decided to take one of the exhaust... as you do. ;)
On playback when I was reving the car hard (+5.5k rpm I'd say) I noticed blue smoke coming out the back, very noticeable. Once back down to normal it goes away.
My dad says it's nothing to worry about, but is it something I could get fixed? Would it be expensive?
Cheers.