So I see the only place to unbolt the cat is right after the o2 sensor. Not like it would make life easier but I was hoping it was just bolt on at each end. And I don't have the o2 sensor socket anymore. So time to dig for an open end 22 mm.
Hollowing it is an option as long as I get the rear o2 simulator to trick the computer during inspection. Visual inspection isn't an issue since my girls father also does our inspections and he doesn't care as long as the inspection computer doesn't. Honestly if I only had a welder id weld a straight pipe in. That u bend is awful.
