Frequently asked questions


How much is a Catalytic Converter for a Prius?

The price of a OEM Catalytic Converter for a Toyota Prius (2004-2009) is $2148.55 

This does not include gaskets, hardware and 02 sensor which attach to the assembly. In the event that your catalytic converter is stolen, you would need to replace these additional parts as well. 

4 Flanged bolts -  $21.16 

4 Compression springs - $22.76  

1 Front donut gasket - $57.03 

1 Rear donut gasket - $24.74  

1 Downstream 02 sensor - $168.22 

You could be looking at a total cost of $2441.99 on the assembly and all parts listed above. These prices do not include the installation of the parts as well as sales tax.

Does a Toyota Prius have a Catalytic Converter?

Yes, a Toyota Prius does have a catalytic converter. The power plant of the Toyota Prius is comprised of two motors. One being electric and one being gasoline. The catalytic converter on the Toyota Prius is for the gasoline engine and is extremely important, as it reduces pollution when the gasoline engine is being utilized.

How much is a stolen Catalytic Converter worth?

A stolen Catalytic Converter can be worth a lot of different values depending on how it is sold. I’ll use the Prius for an example. If you replace the catalytic converter on your Toyota Prius at home and have the old part. You could go to your local metal recycler and get up to $900.00 for the unit in just scrap alone with where the metal market is currently. With that being said, we could only assume that the catalytic converter is worth more than $900.00 as even the recycler needs to make a profit as well. 

If you went to a mobile recycler or a muffler shop you would probably get paid between 375.00 to 700.00 being that they would have to then bring the catalytic converter to the recycler and would need to make a profit to do so.

Most stolen cats are sold on the black market and are worth a lot less being that they don’t have proof of where it came from and they don’t want their name tied to it.

Most recyclers these days require identification for the recycling of catalytic converters. Recyclers in California also won't give you cash for them. They will write you a check and mail it. Identification helps protect the recyclers and leaves a paper trail in case someone was to find out the converter is stolen.

Not many people know how these parts are being sold or to whom. What we do know, is that some of these shops and recyclers that recycle a large volume of catalytic converters can easily hide a few Prius ones in their load, without anyone noticing. 

How do I stop thieves from stealing my Catalytic Converter?

There are many ways that can help prevent a thief from stealing your catalytic converter. 

If you own a Toyota Prius (2004-2015) you can purchase our product

Cat Security. It is a vehicle specific protection shield that blocks access to your catalytic converter. We currently only have coverage for the Toyota Prius but our goal is to come out with protection for every vehicle on the road.

Another solution is going with a aftermarket car alarm that the sensitivity can be adjusted on. This helps draw attention to a thief if they tried to raise your car or cut your catalytic converter off, By the sound of a siren.

Will insurance cover a stolen Catalytic Converter?

Yes, insurance will cover a stolen catalytic converter if you have comprehensive. However, you will still be liable for your insurance deductible.

Does removing Catalytic Converter damage the engine? 

Removing a catalytic converter does not damage the engine of a vehicle. It damages something a lot more valuable, Our planet! 

Is a Catalytic Converter worth replacing?

In the event your catalytic converter fails it is absolutely, worth replacing.

If not replaced, you could fail a smog inspection which could translate into your registration lapsing and potential fines

In other cases where the catalytic converter is very expensive, some vehicle owners would prefer to donate or junk their vehicle and get a new one.


How long can I drive with a bad Catalytic Converter?

This depends on what is bad. There are a few different definitions of a bad catalytic converter. One definition of a bad catalytic converter is, the converter is clogged or plugged which means the converter overheated and the ceramic honeycomb has started to melt and become plugged. If your engine has significant blowby or had some catastrophic failures where oil or coolant went through it then it could plug as well.

If your converter is plugged, it can and will damage your engine.  The amount of backpressure on your engine could be catastrophic.

Another way a converter fails is by efficiency. Your converter could not be plugged at all, yet not be working efficiently. Your upstream and downstream 02 sensor monitor the health of the catalytic converter by reading the gasses before and after they pass through the catalytic converter. When the gasses are not being broken down enough, your vehicle triggers a check engine light for the efficiency of your cat. You could technically still drive without harming the engine depending on the circumstances. However, I would not recommend driving the vehicle with any failure or check engine light illuminated. One common thing I explain to customers that do not want to change their catalytic converter is this. Your check engine light will stay on if not replaced. In the event, that you have another failure your check engine light will not be able to inform you, as it is already illuminated. 

Why are Catalytic Converters being stolen?

Catalytic converters are being stolen for the precious metals contained inside of them, specifically platinum, palladium, and rhodium. The amounts of these metals are substantial enough that converters fetch a big dollar amount on the black market.


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