I'm about to buy this Xb with a supercharger.

I noticed a discoloration at the end of the pipe
next to the cone airfilter

has anyone seen this happen before or is it just
something spillid on it?

I want everyones opinion before I talk to the owner
about it.

It's got less than 35,000 miles, leather int full exhaust
trd springs, etc...

should I buy this?

Thanks
Ricardo