Front air dam
#2
JK Super Freak
#6
JK Enthusiast
I read a forum post from a Wrangler engineer who said the air dam is important for two things: reduced drag and better air circulation around engine compartment (reduced temps). So I would leave it on, or at least go with a beefier but similar replacement.
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#10
I have had my air dam off since purchasing the Jeep 2 years ago.
No cooling problems.