$500 is on par with a lot of the cat back systems if you can avoid converters. Install is do-able with common hand tools.

 

Did a cat back in my 2009 5.4. Was pretty easy. The main concern is that it'd be too loud in cab

 

My 2013 FX4 Ecoboost before and after resonator delete, and magnaflow performance exhaust

 

I used the walker front pipe for the 2010 f150 5.4 and it is identical to the ford res delete as far as length and the flange is correct but actually the walker one is a bit larger except at the end is necked back down to 2-1/2 i bought it for 20 bucks pretty sweet. I have a 2014 screw sb ecoboost part number was 53901 for my truck. cheap and works perfect

 

I was just about to ask this question but I will refer to your post while asking. I found a part #, 9L3Z5A212C, for a Ford res delete pipe for my 2014 ecoscrew but every website says that it will not fit my truck. You said that you used the same pipe as the 5.4s used, which is what the pipe I'm looking at says it is for. I just ordered the Corsa DB cat-back system and wanted a res delete. Before ordering, I'd just like to know for sure.

That is the part that I found on another site they used. I'm stoked to install it though!