Induction Innovations Coil Kit and heater. Great TOOLS. They get the job done with very little intrusion on close parts. Have even used it to solder with. Our second such purchase.
Fast and clean
I haven't used it much, but for the little I have it worked better then expected. I was working in an area with hydraulic hoses and access only from the bottom with painted steel all around. was nice not to have to repaint after using torch. Was a 5/8" nut, it was red hot in 30 seconds or so, bolt backed out no problem. Should work great on exhaust manifolds and anything with hydraulics.