there are tons of things you can do to your car to improve power and gas mileage here some http://www.racepages.com/products/?Ntt=Nissan+Frontier+Cold+Air+Intake&N=4294967103 http://www.autopartswarehouse.com/products/parts.php?year=2002&make_text=nissan&category=air_intake&model_text=frontier
The EPA mileage estimate for the 2002 Nissan Frontier is 20 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2012 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2005 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2001 Nissan Frontier is 20 mpg in the city, 24 mpg on the highway.
The EPA mileage estimate for the 2010 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2009 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2013 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2014 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2004 Nissan Frontier is 20 mpg in the city, 24 mpg on the highway.
The EPA mileage estimate for the 2006 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2003 Nissan Frontier is 20 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2011 Nissan Frontier is 19 mpg in the city, 23 mpg on the highway.