Plymouth Air Shield/ Stone Shield

ADD Automotive/ ADD A CAT Shields and Hardware are Manufactured in Houston, Texas U.S.A.

add automotive is working with the university Circle police in Ohio from may 5th-9th and may 12th-16th. Once you have ordered your shield and received it, they will install the shield for free. call 216-229-5855 to make your appointment

They are water jet cut and custom made from American Marine Grade 3/32-5052 Aluminum. Our louver design provides the best heat dissipation, while still protecting the vehicle. ADD A CAT Shields are made to fit with 100% of the skid plates on the market, including OEM skid plates. All Catalytic Converter Shields come with our Patented, Proprietary Security Bolts at no extra charge.

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all add a cat Shield orders ship same day, or next day.

Never a Delay. No Lead Times.

ADD Automotive always answers the phone and emails are responded to quickly. Your days of waiting for someone to return your call are over.

You are important to us. You come first.

INSURANCE DISCOUNT

Did you know when you purchase a Catalytic Converter Shield, you could receive up to 15% off your insurance policy.

add automotive feautred on Motortrend tv

**Click here to watch:** **Truck U (Season 19 Episode 6) "Matt Knows Tundra" Featuring Bruno Massel and Matt Steele**

**Click here to watch:** **Two Guys Garage (Season 22 Episode 9) "RAM 1500 Re-Style" Featuring Kevin Byrd & Willie B**

ADD Automotive/ Add a cat

Catalytic Converter Shields for Toyota, Lexus, Ford, Dodge/Ram, Chevrolet, GMC, Isuzu

Here at ADD Automotive, we’ve been in the automotive catalytic converter shield business for the last 4 years. We manufacture and sell corrosion-resistant, durable Catalytic Converter Shields ADD Automotive. Our fully custom-designed product will not void your vehicle’s warranty and does not require any parts modification for installation. We also provide fully custom, American-made, proprietary security bolt fasteners when you purchase a shield. It also functions as a skid plate for your vehicle.

These are available in certain models of Toyota, Lexus, Ford, Chevy, Ram, GMC, and Isuzu. They are made of a high-grade aluminum that works to both dissipate heat and resist corrosion. The shield can end up paying for itself in the long term, as it can get you a discount on your monthly car insurance rate. In 4 years of business, no thief has been able to get through our shields to steal our customer’s converter.

You can order online or call ADD Automotive for a quote at 281-608-2894. We can send them to you anywhere in the United States. Installing the shield should take you less than 30 minutes. Just place the adhesive rubber bumper in a suitable location and tighten the security bolts.

You can stop in to have them installed at our Kingwood, Texas location any day from 7:30 a.m. to 5 p.m. or at our Downtown Houston location Monday to Friday from 8 a.m. to 2 p.m. Please make an appointment before visiting either location.

Insurance Discounts

Did you realize that once you purchase a shield and get it installed you can take your receipt of your purchase to your insurance company and receive a discount on your auto insurance? Make sure to tell the insurance company you now have a shield protecting your converters and they will give you that discount.

Call for a Quote

We offer protectors for many models from 2003 to 2025. Contact us today at 281-608-2894 to get a quote.

Free shipping

Free United States shipping