I own a 2011 F-150 XLT with the 5.0. From day one I have loved this truck. I just recently tuned it with a superchips tuner and was amazed at what a difference this makes. I also added a cold air intake and exhaust. When choosing my exhaust I researched a lot. I wanted something with a deep grumpy sound at idle and when I got on it but quiet when cruise set a 70. A lot of people were against a Gibson exhaust. But after much deliberation I bought the Gibson Dual extreme. I removed my resonator as well. and I will say this. No it is not as loud as a roush exhaust and yes I know someone who has one on there f150, but it is perfect for me. Very loud and aggressive when you get in the throttle, it definitely lets people know you are coming. Very deep rumbly tone. and just as I hoped when cruise is set to 75 I barley hear it. Its perfect. So if your like me and don't want to shatter windows or have a headache after 10 minutes of driving then I seriously recommend this exhaust. especially once you remove the resignator.

 

Had a Gibson on my previous vehicle, a 2001 Dodge Dakota QC 4.7L. Exhaust fit well, sounded great without any drone in cab. Made some sound when you get on it though.

Don't think I'll do anything with my stock with the EcoBoost.

 

Yeah, I really like the exhaust. The tuner made a big difference in torque too