having a little trouble

hey i just got some headers and im haveng a hell of a time trying to get the egr reciculation pipe that connects to the headers off of the original headers i used some Wd40 but no luck do you guys have any tricks up your sleevs that i can use?

I believe a 15/16" wrench works, but I ended up using a pipe wrench. Kano-Kroil has saved my live a million times. Good luck.

hmm mine came right off, had to use some elbow grease but other than that i dunno. Guess i got lucky. I had to replace mine also, because there was a random hole in it.