Fitment Information Nissan Altima L4 2.5L Gas (2013, 2014, 2015, 2016, 2017, 2018) Specs & Features Dyno Proven - 8 whp and 12 ft/lb tq gain! Outflows factory intake by 25% Pro DRY S Air Filter (Dry) -  Part # TR-3021B-D Pro 5R Filter (Oiled) - Part # TR-3021B-R CARB Exempt: No Increases throttle response Direct bolt on, no modification required No tuning required Lightweight Vacuum Formed Plastic Cover w/ Auxiliary Air Inlet Product Description aFe (advanced FLOW engineering) spends countless hours with each and every vehicle to ensure that their intakes produce the most horsepower possible.  Each intake is dyno tested over and over to ensure their design, air filter, and technology creates the best environment for the most power and torque.  We love this intake so much, we run it on our own shop cars! aFe uses their special high-flow conical air filters that allow the most possible air flow without letting in contaminants.  Each intake produces a deep and throaty sound and outflows the factory intake by an average of 30%! aFe Cold Air Intake Features: Dyno Proven Horsepower Direct Bolt On Installation Includes all necessary hardware