Magnaflow Conv DF 99-01 Protege 1.6/1.8 CA

When you're tackling a catalytic converter replacement on your 1999-2001 Mazda Protege, especially if you're in California or another CARB-restricted state, getting the right part is crucial. This Magnaflow Direct-Fit Catalytic Converter (part number 454021) is built to keep your check engine light off and ensure your exhaust system is compliant with strict emissions standards. It's designed specifically for the 1.6L and 1.8L engines in those Protege models, meaning it should fit right in place of your original converter without needing any cutting or welding.

What you get in the box are the essential pieces to get the job done: the catalytic converter itself, along with two nuts and two flange gaskets. Magnaflow uses a durable 16-gauge 409 stainless steel for the tubing, which helps resist corrosion and should give you a long service life. The converter body is designed to replicate the original equipment's spun body style, and it's sealed with a single laser fusion weld. This construction helps reduce the chance of exhaust leaks and allows for good thermal efficiency. The internal design aims to flow freely, helping maintain your car's original performance and fuel economy while meeting those tough California Air Resources Board (CARB) requirements.

Because this is a direct-fit unit, Magnaflow uses advanced 3D scanning during their research and development to ensure it matches the factory fit and function. This means installation should be straightforward with the proper tools. It's designed to meet or exceed CARB requirements, so you can be confident it's legal for use in California and other states with similar emissions regulations.