vg247

Recently I've noticed that my polished exhaust tips tend to get much more dirtier on the right side compared to the left side tips.

Is this normal, or is this indication that my exhaust has leaks some where and the flow is not even on both sides, or perhaps other issues?

I have Fistered side cans installed by Darren and a Sharkwerks center bypass on my 997.2 car. Haven't noticed any loss in power then again I just got back in the country and haven't spent time driving as much.

Thanks in advance.