Cat inlet/outlet sizing
Okay, so here is the deal. I am hearing a loud rattle coming from the cat. I figure part of the material inside had broken loose and as exhaust gets pushed through it rattles even louder. Right now is just not the right time for a high flow cat or a OEM replacement. The shop that my company acquired has a bunch of brand new left over exhaust products. In the mix are two brand new aftermarket cats. One of them is a 3" in and out and the other is a 2.5" in and out. My question is what is the size of the OEM cat that is on my SSEi. From what I can tell, it has a 3" inlet, but then it goes to the o2 and I guess a resonator pipe of some sort. I have plenty of pipe, clamps, plus a TIG welder, pipe bender/expander, and a lift to perform the repair. Can anyone possibly help me out with this one? I plan onrepairing this on Wednesday or Thursday.