What does a Prius sound like without the catalytic converter?

Loud Vehicle Noises and Missing Catalytic Converter
You will find that when driving without your catalytic converter, it will sound like your vehicle is roaring—especially when starting or giving it gas.
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What is the sound of a missing catalytic converter?

You'll notice a loud rumbling or roaring sound when you turn on the engine if your catalytic converter is missing. This sound gets louder when you hit the gas. The exhaust is not working correctly, so the vehicle also drives rougher than usual, often with a sense of sputtering as you change speed.
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What happens to a Prius without a catalytic converter?

If you don't replace your catalytic converter, you can expect: Loud engine noises. Rough driving and jerky acceleration. Failed emissions tests.
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What are the symptoms of no catalytic converter?

Among the symptoms of a bad catalytic converter are:
  • Sluggish engine performance.
  • Reduced acceleration.
  • Dark exhaust smoke.
  • The smell of sulfur or rotten eggs from the exhaust.
  • Excessive heat under the vehicle.
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How long can you drive without a catalytic converter?

As part of a car's exhaust system, the catalytic converter helps to reduce air pollution. You will not harm your engine or your car in any way by driving without a catalytic converter. It's not always a good idea to drive around without one, even if it works.
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Toyota Prius - Stolen Catalytic Converter



Does removing catalytic converter damage engine?

Since the catalytic converter places a strain on the engine with its constrictive design, it must work harder to achieve the same energy than it does without the device in place. Removing it lessens this burden, creating a net effect where the engine can perform significantly better without working as hard.
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Why do thieves steal catalytic converters from Prius?

Car experts say since the Prius is a hybrid, the catalytic converter corrodes less than on other cars, keeping the precious metal coating in better shape. It's also one of the most expensive to replace, costing between $2700 and $4100. Thieves steal catalytic converters to get the precious metals rhodium and platinum.
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What cars are most targeted for catalytic converter theft?

According to a recent CarFax post, nationwide, 10 popular targets are:
  • 1985-2021 Ford F-Series pickup trucks (F-150, F-250, etc.)
  • 1989-2020 Honda Accord.
  • 2007-17 Jeep Patriot.
  • 1990-2022 Ford Econoline vans.
  • 1999-2021 Chevrolet Silverado pickup trucks.
  • 2005-21 Chevrolet Equinox.
  • 1997-2020 Honda CR-V.
  • 1987-2019 Toyota Camry.
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Can you sell a Prius without a catalytic converter?

In a Prius must have a catalytic converter in California to pass the smog inspection. Since the car is a hybrid, it still uses some traditional fuel, which means standards emissions regulations.
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Does removing a catalytic converter increase noise?

Just like how the purpose of a muffler is to muffle the loud noise caused by the exhaust exiting your vehicle, the catalytic converter does the same thing. If you remove your converter, you're giving your car a louder and more distinctive sound.
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Can you run a car without a catalytic converter?

Vehicles can be driven without a catalytic converter. There are vehicles in non-emission testing areas that have had their catalytic converters removed, but removing a cat-con is against the law in every state, even those that don't enforce emissions standards.
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How much is a stolen Prius catalytic converter worth?

Hybrids require catalytic converters with a higher concentration of precious metals than those found on gasoline-only cars. The HLDI notes that the converter from a 2007 Prius is selling for about $1,022 today, compared to just $143 for the converter used a Ford F-150 from the same year.
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What year Prius Are they stealing catalytic converters from?

Due to the precious metals contained in its catalytic converter, theft claim frequency for 2004-09 Toyota Prius models was a staggering 40 times higher in 2020 than in 2016, according to a recent analysis by the Highway Loss Data Institute (HLDI).
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How do I know if my Prius catalytic converter is stolen?

In summary, here are the key symptoms that your catalytic converter has been removed:
  1. Loud roar when you start the car, louder as you accelerate.
  2. Increase in exhaust fumes, or unusual exhaust smells.
  3. Missing parts under vehicle leading to muffler.
  4. Uneven or sputtering acceleration due to lack of exhaust regulation.
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How do I protect my car from catalytic converter theft?

Three ways to protect against catalytic converter theft
  1. 1) Etch your license plate number onto your catalytic converter. This makes the part identifiable to law enforcement. ...
  2. 2) Park in well-lit areas. ...
  3. 3) Install an anti-theft device.
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Does insurance cover stolen catalytic converters?

Is a stolen catalytic converter covered by insurance? If you have comprehensive coverage on your auto insurance policy, then you're typically covered against catalytic converter theft. Comprehensive coverage will typically pay to replace the stolen catalytic converter and repair any related damage from its removal.
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Which cars are least likely to have their catalytic converters stolen?

American brands such as Ford, Chevy, Jeep, Dodge, and Chrysler tend to have less valuable catalytic converters and are therefore less likely to get stolen. Some Nissan, Hyundai, Mazda, and Subaru models also fall into this category. Many brands used cat designs that limited how many precious metals were inside.
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How do I protect my Prius from catalytic converter theft?

5 Ways to Prevent Catalytic Converter Theft
  1. Know if you're a target for catalytic converter theft. ...
  2. Install an anti-theft device on your catalytic converter. ...
  3. Paint your catalytic converter. ...
  4. Set an alarm or camera to catch thieves. ...
  5. Check your car insurance.
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How do you park a Prius to avoid catalytic converter theft?

Always park in well-lit areas when possible. If you have a personal garage, keep your car in the garage with the door closed when the vehicle is not in use. Park close to a building entrance or to the nearest access road when parking in a public lot.
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How much is a Toyota catalytic converter worth scrap?

Toyota catalytic converters' worth can range from $75 and $700 when sold as scrap.
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Can I replace my catalytic converter with a straight pipe?

The short answer is yes you can.

If you install a straight pipe, often called a test pipe, you will fail all emissions tests or smog checks.
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Does no catalytic converter affect gas mileage?

2. Decreased Gas Mileage. A common result of failure in the catalytic converter is a decrease in gas mileage. This is because if your catalytic converter becomes clogged, exhaust will become trapped in your car's engine.
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How much do thieves get for a stolen catalytic converter?

Thieves can make anywhere from $25 to $300 for a standard catalytic converter, and ones from hybrid vehicles can sell for up to $1,400. These parts are also relatively easy to access from under the vehicle.
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How much does it cost to replace a catalytic converter on a Prius?

The total cost of parts and labor is between $2,145 and $3,000 to have a professional replace the catalytic converter in your Toyota Prius. The catalytic converter itself costs about $2,055, while labor fees make up the remainder of the estimate.
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Why are they stealing catalytic converters?

Why are people stealing them? Thieves target catalytic converters because of the value of the metals found inside the devices. Catalytic converters are typically made up of three precious metals: platinum, palladium and rhodium. The value of all three metals have risen sharply in price in the last decade.
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