Fans
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If you want a clean set up the flexalite is the ticket but your tow weight will be limited. Would also suggest upgrading the rad if funds allow. Then you could prob get away with pulling double duty. If your more concerned with cooling, 2 Taurus fans rigged to fit or an ls1 camaro or anything with similar cfm would be my suggestion. Would need near 7-10000 cfm to cool properly for towing over 15000lbs