[2Ting]

Can/Should I re-coat the black lining on my stock Si exhaust? (what can I use that would withstand the heat) Or should I just scrape it all off?

 

[lessonstar]

Can/Should I re-coat the black lining on my stock Si exhaust? (what can I use that would withstand the heat) Or should I just scrape it all off?

yes,you need and have a look,https://maxima.org/forums/7th-generation-maxima-2009-2015/612219-exhaust-paint-chipping.html
https://maxima.org/forums/7th-generation-maxima-2009-2015/581068-exhaust-tip-paint.html