May or may not need to get a catalytic converter. In case I have to I want to know which one to get and where to get it. I have ATR SS 1½” Headers, SS Crossover Pipe, SS 2½” Downpipe, SS 2½” Exhaust w/Pit Bull Mufflers & SS Race Pipe. gbodyparts lists a 86-87 Grand National / T-Type Performance Catalytic Converter for $135 and the SS hangar for $129. But will it fit? Cottons and Kirban's both have 3". Anywhere else to look for one of these things?