Does The Catalytic Converter Reduce The Horsepower In My Toyota Prius?

I’ve heard that catalytic converters reduce a car’s horsepower. If I take the converter off of my Toyota Prius, will it have more horsepower?

Find out if you’re getting ripped off on your car insurance in less than two minutes.
No spam · No long forms · No fees
Find savings (100% Free)
rating white
3.5k Ratings
Answer provided by
Patrick Price
Answered on Jun 03, 2022
The short answer is no—the catalytic converter does not reduce the horsepower in your Toyota Prius.
You’ve probably heard people say that catalytic converters inhibit engine performance and that removing them can boost its power. This is not exactly true. All the converter does is reduce harmful emissions by converting dangerous compounds in your exhaust into safe gasses.
Sensors on or near the converter, however, do monitor your exhaust and regulate engine behavior accordingly. Sometimes, this means restricting performance slightly but only in the interest of minimizing its environmental impact.
In some older models, you could get a horsepower boost by removing a converter. In modern cars, however, you’ll just end up with a whole mess of performance issues, an inability to pass emissions tests, and serious legal ramifications since it’s illegal to remove converters.
While you’re tinkering with your Prius, it might be a good time to review your car insurance policy. You could save hundreds on your insurance payments if you use Jerry—the car insurance comparison super app—to review your coverage.
Using Jerry is easy and only takes a few minutes! Best of all, drivers who switch coverage using Jerry save an average of $800+ a year!

Here to save on car and home insurance? Great, you do that. We’ll do everything else.

Sign up in under a minute.
No need to fill out forms or shop around. Sign up in 45 seconds to start saving. Jerry does the rest.
Jerry collects and analyzes your current coverage.
Say hello to Jerry, your new insurance agent. We’ll contact your insurance company, review your current plan, then find the coverage that fits your needs and saves you money.
Get the best options before your renewal.
Jerry does all the picky, busy work by comparing prices and coverage from more than 50+ insurance companies. We compare what we find to your current policy and offer you the three best options before every renewal.

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings — it's 100% free