Black staining on exhaust pipe at downpipe and Y-pipe connections.

[S3Will]

I started noticing black staining on my driveway. I found it's caused by moisture carrying black soot out of the joints at the downpipe and Y-pipe connections. I also see it coming out the drain holes in the mufflers(not pictured). I do have a tune. Any ideas what is causing moisture to do this?

 

[UNBROKEN]

Every exhaust does this…just most of them are sealed up so it doesn’t leak out that bad. Your clamps either aren’t tight enough or just suck.

 

[ARC]

Good reason to replace now with a better exhaust. Preferably something that is 2.5in and drop the weight of the stock system.