Rough Country Jeep Cold Air Intake (07-11 Wrangler JK, 3.8L) 10554 2007-2011:2WD:Jeep:Wrangler JK Unlimited;2007-2011:4WD:Jeep:Wrangler JK (2 Door);2007-2011:4WD:Jeep:Wrangler JK UnlimitedIncreases horsepower and performanceImproves airflow to engine for...