Engineered for Excellence,
Designed for Performance

We are constantly researching and integrating the latest technology into our converters to make the most durable, reliable, and efficient converter on the market.
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Shield Your Investment

Don't let converter theft happen to you. Safeguard your vehicle with Cat Shield by Miller CAT.
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Built to Explore

Protect your adventures with the MCX Skid Plate by Miller CAT. Engineered for durability and precision, our skid plates deliver unmatched protection and confidence for every off-road adventure.
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Protect Your Ride,
Preserve Your Peace

Protect your car from theft with MCPROTECTED.
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Catalytic Converters & Exhaust Products

We manufacture 100% CARB Compliant catalytic converters and exhaust products.
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Cat Shield

Protect your catalytic converter from theft with Cat Shield, a part of Toyota's Authorized Accessories Product line.
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Overlanding & Explorer Line

Built to explore. Committed to your safety, never compromising on quality.
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Vehicle Protection

CAN Bus theft is on the rise. Don't wait to be part of another statistic. Get MCPROTECTED today!
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COMMITTED TO QUALITY

We carefully source our metals from domestic distributors that carry the highest quality metals.

PROUD TO BE

Designed & Manufactured in the USA

100% carb compliant

ISO-Certified

The most reviewed and highly rated products on the market

★★★★★

I was impressed with the rapid order fill & ship. I was equally pleased with the quality of the shield design, fabrication quality, and installation instructions. I'm a happy 2023 Tacoma customer.

Terry Wilson
Toyota Tacoma 3.5L RWD Cat Shield
★★★★★

We had a cable version put on the car a few years ago. These thieves are relentless and tried to get it off, but couldn’t, but they mangled everything. With this new shield, I don’t think they’ll even bother trying. Well worth it!

Kirsten Winter
Toyota 4Runner Cat Shield
★★★★★

A year ago last november we had catalitic converters stolen from both our Hondas. I ordered one Cat shield at that time and had it installed. I ordered the second one 2 weeks ago to finally secure the second car. My order was delivered within 24 hours, the shield was installed without difficulty. Thank you so much for providing quality equipment so promptly.

Marilyn Siegle
Honda Accord Cat Shield

PARTNER WITH US

APPLY FOR OUR SHOP PROGRAM

Enjoy special shop pricing for catalytic converter shields and secure a coveted spot on our installer database.
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BECOME AN AFFILIATE

Join the Cat Shield family and sign up for our affiliate program to earn commission on referred sales.
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Stay Up to Date

View all
A Shoutout to MotorTrend: Prius Performance with the Cat Shield
A Shoutout to MotorTrend: Prius Performance with the Cat Shield
We’re thrilled to have our Cat Shield featured in MotorTrend! After six months and 8,000 miles of driving, here’s what they had to say about their experience.
Read more
How to Protect Your Vehicle From a Total Loss
How to Protect Your Vehicle From a Total Loss

Read about safeguarding your vehicle from potential total losses with Cat Shield by Miller CAT.

Read more
Should I Still be Worried About Catalytic Converter Theft?
Should I Still be Worried About Catalytic Converter Theft?
Converter thefts are decreasing as precious metal prices drop, but staying protected is still crucial.
Read more

Need Support?

We're here to help. Email us at support@millercat.com or call (214) 501-0152.

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