Exhaust Headers 1-5/8 in. Stainless Steel Polished Finish for 2004-2010 F-150 F150 XL XLT FX4 Lariat Pickup Truck 5.4L V8

Fits a little tight on the 05 ford f-150 but mounts up great

Horror. Do not buy this product. I put the manifolds on my engine that I built. Put it in the truck. After bolting everything up. The manifold was jammed against the upper rear control arm mount. I was not going to pull the engine to remove the manifold. It is the only way to remove it. I now have an exhaust leak because of vibration wore a hole in the manifold. I burnt up sawzall blades trying to cut it out. Next is the torch. After that I will have to buy a plasma cutter. What a Horror. Do not buy this product. You would not be able to install it on an already installed engine. Nightmare. Who pays for this. Let aline the money wated on the product. When I complained. There was no action. . So there is no Warranty. Product sucks. Do not trust Amazon to back you up. I got nothing . Except Nightmares.

Quality wise, they look and feel real good, nice thick mounting flange, welds look good ! I did have time enlarge 3 or 4 holes to get them to fit on the head studs, but that was expected. And I wasnt worried about doing it, there's plenty of material there to do so. There were 2-3 studs that are kinda tricky to get the nuts on and tight. Had to cut a couple studs off a bit to clear the stud interference hitting the header not allowing it to seat to head all the way but really not a big deal. I put them on before putting the engine into the truck, was a bit concerned but the whole assembly went in. Carefully, took some financing and was pretty tight but can be done. Once it was in they both lined up with the stock exhaust flanges VERY well. I was impressed. The only reason I didn't give them 5 stars has nothing to do with them. I still don't have the truck running so I'm unable to tell anything further, the I may come back and change this review. But so far 👍👍👍👍Nice, engine runs great ! Nice low tuff exhaust sound, no leaks. Five. Stars. I'm picky. And happy with them !

Spent better part of an afternoon attempting to install and the flange bolt pattern is off by just a bit couldn’t get it installed had to go back to the own cast iron that are cracked

I replaced my factory manifold with this header. Fixed the manifold exhaust leak and added a low rumble sound. Love them! All I would add (as was recommended by others) was a quality set of exhaust gaskets!

Fits as should way better than stock cast iron

Installed a month ago on truck bolts recently broke and manifold is cracked I’ve been a mechanic running a custom shop for 30 plus years never seen crap like this. I’m po over this

Amazon said it would fit, mechanic said they don’t fit!