relieve air that gets trapped behind the bumper. Supposedly it serves a purpose on the actually fast imports but it seems to have been adopted by all the ricers that trap less than 100mph.
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97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
'17 Sierra 2500HD Dmax
'17 Lex LS460
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