The alternative being? Cats die. When they do, they need to be replaced if you plan on keeping a truck road legal. Pricey for a carb obd2 cat. Yes, but a fraction of the OEM one with little to little downsides. Theres a reason it costs more and it's not just going through CARB or ARB compliance, which is VERY expensive. The bricks contain varying amounts of precious metals required.
An aftermarket direct-fit obdii california compliant cat at a very reduced price to OEM or remanufactured OEM. sign me up.
Again, Im not sure what your point is. Are you implying one uses it and the other doesnt? Im not sure what your getting at. Also as a point of reference I was on the marketing/art side of MagnaFlow and Car Sound for a decade.Yes, the majority of OEM use platinum in the substrate, I am very familiar with their construction.
Not sure if this will help anyone in Ca. to save money, but I know my cat is on its last leg as each smog inspection I eek by less and less, last one I just barely passed and I recently got a "check engine", wouldn't be surprised if the cat and/or some O2 sensors are dead.
Here are three Ca. compliant cats from $169.00 to $239.00 that fit Gen2 Monteros: https://www.catalyticconvertersonli...make=MITSUBISHI&model=MONTERO&california=True
Some of the better prices I have seen around for sure.