aFe Force XP 4" Cat-Back Exhaust

I was debating on a few different systems prior to purchasing this, and I'm glad that I went with the Mach Force. I cannot say enough good things about this system, it really rocks. It was easy to install; only took about an hour and a half, and that was laying on the ground with the truck on ramps. The hardest part was getting the stock system off. VIDEOS ONLINE DO NOT DO THIS SYSTEM JUSTICE! It sounds great, especially under load. It gives the EcoBoost a deep growl, but is not obnoxiously loud. It also tremendously accentuates the turbo whistle. There is some drone in the cab around 2500 RPMs, but is not unbearable. You can also notice a difference when you get on the pedal, it definitely boosted the trucks HP and torque. I highly recommend this system, and will buy it again for my next truck.