I know this is beating a dead horse, but I have to agree with the majority on this thread - don't skimp on the headers, you really do get what you pay for...and you end up paying for it in the end anyways!
Last summer I replaced my headers (had a pretty sizable leak in the passenger side header and it was LOUD) and decided to go the cheap route. Bought a pair of Dorman OEM replacement headers for my 05 Titan and had my local shop put them on for me. This was one job I didn't wan't to tackle myself.
https://www.amazon.com/Dorman-674-844-Integrated-Catalytic-Converter/dp/B004SRA5XI
These were half the price of the stock headers from Nissan, so I thought I was going to save at least $700 on the job. FAIL. One of the headers ended up having a hole in it, underneath one of the welded reinforcement plates (photo). By the time the shop found the leak via a smoke test, and ripped the plate off, welded the leak, replaced the plate, and put the header back on the truck, my bill was about $100 less than if I had just gone with the stock headers. Lesson learned. I'm not saying you should go stock, I'm just saying you should go with something from reputable brand name that's proven, and good quality. The guys on here know what they are talking about, and can give great recommendations for whatever you're looking for. If it isn't cheap, there's a reason, and in the end, it's worth paying the extra $$ to save you some headaches.