I have a alumnized version of the mak off-road pipe for the ecoboost for sale. I purchased this the beginning of November and have used it until yesterday when I put my stock cats back on. This pipe definitely lets you hear the turbos better as well as makes it a little louder when you get on it. You will however not be able to pass emissions with it on unless you have a small town shop that doesn't bother with that and I know there out there. The pipe is in excellent shape as I mentioned it was only used for 3 1/2 months. The only thing that would be different then when you buy it knew is I paid a shop 50 dollars to put a weld halfway around the seam on the driver side pipe where it slips in. It will still install just fine as the factory cats are all one piece. I will post a picture of what I am referring to. I had them put the weld because when the pipes were on there was the smallest little gap between the two and I wasn't sure if that would cause an exhaust leak so it was easier just to have them weld it. Any questions just ask I am asking 225 normally run 369 I believe. I do not want to ship and for those in houston interested I can meet in wharton as that is the halfway point from me to you.