I definitely want to clear some things up in here. Firstly, I apologize that you feel that there was some misinformation, but our website, and posts, clearly state that downpipes are not EPA approved, and not legal for on road use. Secondly, any, and I do mean ANY downpipe for these trucks, cars, and anything or than the actual OEM unit is NOT legal. Anyone marketing them as such are actually the ones doing the misleading. Unfortunately many people think that just by having, or not having a check engine light means something is good. Unfortunately, it is not. Being we have put products of ours through the CARB cert process, we are speaking from experience. If it's truly legal, it will have an EO. If someone tells you it's legal, and doesn't have an EO to back it up, then, well, it's simply not. Additionally, any tune that decides to try to "cheat" by adjusting the tune to not throw a fault are breaking some serious laws, something we will not do. If someone chooses to make their vehicle "off-road/race use only" then they need to own up to that decision. But, again, to recap, there is not a single, legal, aftermarket downpipe for any ecoboost platform.