I tried the PBlaster on the collector that is on the Demon. The passenger side came off. The drivers side I treated multiple time still wouldn't budge.
Ok...then here's another trick. Along with the P'Blaster, get a vibrating massager like for a bad back and work it around the tubes at the collector. This will vibrate the joints and help the P'Blaster get in between the tubes. It works pretty good. I have a lot of experience with gettin rusted parts loose.
