conman1395
New member
- Nov 23, 2013
- 1,622
- 0
My exhaust pipes have this black stuff on them. As does the muffler. I know everyone is going to recommend P21S finish restorer and polishing soap and I have no problem ordering those products. But is there anything over the counter that works? I'm about to go to college and I also don't want to order the P21S for just my car since I don't really do others.
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