Who is the manufacturer of the converter? I’ve seen those $72 “universal” catalytic converters on eBay. Wondering if they have any PMs inside!
Those will work for old cars..new ones no. The engine will sense a difference in exhaust back pressure and possibly not run right unless you go in with a laptop/tuning device and change the computer specs just as when people put in a high performance chip.
Magnaflow Cat, Dynomax muffler and exhaust pipe, Walker front pipe.
The CAT is non CARB compliant but works just fine for Ct emissions tests.