There should be some insulation/shielding to help with the heat. The only reason I cut mine was because they long tube sat lower than the belly pan. I would leave it and keep an eye on it. Its not thin plastic so it will handle the heat a little better.
If you feel that it will cause problems, then cut around the headers, like I did on mine.
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2018 ZL1 1LE HBM
2009 Yamaha R1
2011 Corvette Grand Sport
2010 2SS/RS Black & IOM Mods Here
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