Get the most from your engine with an Injen SP Series cold air intake or short ram air intake. These air intake systems feature Injen's patent pending Mega Ram (MR) Technology, allowing it to make impressive power gains with safe air/fuel (A/F) ratios. Strategically control air flow with Injen's step down process! It will regulate airflow at strategic points within the air intake to control the rate and density of the air flowing through it for more reliable power gains. These cold air intakes and short ram intakes are processed tuned to save you the hassle of calibrating the MAF sensors. Enjoy peace of mind when you purchase this air intake. It comes with a manufacturer's limited lifetime warranty. Like other Injen performance parts, the cold air intakes and short ram air intakes are manufactured by expert craftsmen here in the United States.