anybody out have ASM headers? If so what kind of welding are they talking about for install? Is it hard to do by yourself?

 

The instructions say cut the old flange/pipe 1/4" before the cats. I had a shop do mine since I don't have a welder. Spacing came out to about 1/4" on the driver's side and an 1" or so on the passenger side pipe. Custom fit I guess.