My manifolds were leaking pretty bad, so I looked at getting them replaced. These headers aren't much more than the stock replacement and the stock manifolds are crap. So, it seemed like a no brainer. The installation on these are really difficult, if you have an older truck like mine. All the studs were rusted, a couple broke and the oil dipstick tube broke trying to get it out. It's not banks fault, their product is great. I don't notice a huge power gain. They look great though.
Makes a huge difference
My 83 F250 is way more responsive. I could barely keep up with traffic going up steep grades at highway speed. Now I can pass cars on the same grade. The instructions aren't great and some parts didn't fit right. I had to grind about an inch off the inlet flange foot to get it to fit. Overall a fun project and performs great.