You don't have to spend a ton on making your F150 sound great. All you need is one of the resonator deletes and add a deeper and more noticeable sound to your aggressive truck. These resonator deletes easily install in place of your F150's stock resonator assembly and come with all the hardware you need to get them up and running on your truck. The resonator helps keep your trucks exhaust from having any backpressure that can cause potential damage to your engines exhaust system. Pair your resonator delete with other Stage 3 Motorsport accessories such as the F150 resonator deletes or the F150 eco-boost cold air intake. Ford F-150 Fitments: 2011, 2012, 2013, 2014 Ford F150. Submodel Fitments: FX2, FX4, King Ranch, Lariat, Limited, Platinum, STX, XL, XLT. Some Exceptions apply, please see individual product pages for specific fitments.