I worried about the same thing at first. Before I ordered it, I went to their website and they said to make sure your exhaust tip either turned downward or otherwise cleared it. That's how I first discovered that FR had left off the entire end of the exhaust system! Everything was missing back to where it connects to the DEF chamber thingy. You could tell from the connector that nothing had ever been attached. Got that fixed, thank goodness, before it was a problem. Only heat related issue I've noticed is the temp of the front right tire on the toad consistently runs 8-10 degrees warmer than the other tires on the toad. Not an issue, just an observation. That's the wheel closest to the exhaust stream.
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2015 Legacy SR340 360RB with 2014 Wrangler Unlimited Toad
Gigi, Poppy and Sadie the Jack Russell (all 14 lbs of her)
2015 Legacy SR340 360RB
2014 Jeep Wrangler Unlimited Toad
Gigi, Poppy and Sadie Lady...On the road, but not full time!