Don’t like the sound of your aftermarket exhaust on your EcoBoost? Here is the FIX. Tested out on our own 2012, 2013, 2015, 2016 & 2017 shop trucks. We call it QP (Quiet Power). Can be added to any F150 Eco Boost Exhaust System to aid in some back pressure to maintain low rpm torque and reduce 30% of your overall sound. (aka Kills the bumble bee sound). 3 inch twister resonator: 3 inch inlet and 3 inch outlet 23 inch overall lenght 4 inch round body ——————————————————————————————————————- 3 1/2 inch twister resonator: 3 1/2 inch inlet and 3 1/2 inch outlet 18 inch overall lenght 4 inch round body —————————————————————————————————————— 4 inch twister resonator: 4 inch inlet and 4 inch outlet 18 inch over all lenght 5 inch round body
