posted on Dec, 26 2010 @ 09:16 PM
That's such crap.
We had a guy come in to our shop when I was an exhaust tech trying to sell us a bunch of cats that we suspected were stolen since we has some people
come in missing theirs (obviously stolen). We called the cops, but never heard anything more.
Catalytic Converters contain Platinum infused in a ceramic honeycomb. When the substrate reaches operating temps, the Platinum acts as a catalyst,
burning off any leftover hydrocarbons, and converting CO2 and O2 into 2CO2. We were required to have paperwork for every used cat we had. We could
sell more cats than we returned, but we would get in trouble for returning more than we sold, because it usually meant that a car was running around
without a converter. Converters come with paperwork that we would ask for when a customer would bring in his own replacement (usually high-flow
upgrade). We would then stuff this paperwork into the old cat before we threw it in the bin.
Also, a cat should cost you no more than about $150-$200. Take it to a Meineke or something and just have a universal cat installed. Some other
dumbass probably saw the price for the 4-runner's stainless cat assembly and decided to get his for free. A universal cat also comes with a warranty.
Your toy could easily burn through it's 300k mile lifespan on a single cat as long as you keep the O2 sensor replaced when it needs.
OT, but since you own a Toy, and we're on the subject of Catalytic Converters... common misdiagnosis on toyotas is a bad cat... you floor it, but it
has no power. It'll sputter like it's got a clogged cat. BUT, a plugged cat will still let the engine rap up... a TPS (Throttle Position Sensor), on
the other hand, will make it rap up fine under partial throttle, and then it will stumble when you try to rap it up. Toyotas are the only vehicles we
came across that the TPS acted like a bad cat (without throwing a code, even!) Just a quick tip for Toy owners (I love Toyotas, btw).