MagnaFlow CARB Compliant Cat for 2000-2005 Honda S2000
By MagnaFlow Exhaust, Mufflers & Cat Converters - Quality | Published: 2026-10-19
Category: Buying Guides
Need a CARB compliant catalytic converter for your 2000-2005 Honda S2000? This guide covers the MagnaFlow 4481724 direct-fit option, its fitment, and key decision rules.
Quick answer
If you need a CARB compliant, direct-fit catalytic converter for a 2000-2005 Honda S2000, the MagnaFlow 4481724 is a strong option that bolts on without welding and keeps the check engine light off.
Why CARB compliance matters for your S2000
California and states that follow its emissions standards require a CARB compliant catalytic converter for street-legal operation. The MagnaFlow 4481724 carries that approval, which means it meets the strictest smog-check requirements. If you live in a CARB state, a non-compliant converter can fail inspection and lead to fines.
For S2000 owners, the 2.0L (2000-2003) and 2.2L (2004-2005) engines are sensitive to exhaust changes. A converter that isn't designed for your specific model can trigger a check engine light or reduce performance. The 4481724 is engineered for these exact engine configurations.
Direct-fit vs universal: what you give up
A universal catalytic converter costs less but requires cutting and welding to fit your S2000's exhaust system. That introduces potential leak points and can alter exhaust flow. The MagnaFlow 4481724 is a direct-fit unit that uses mandrel-bent tubing and stainless steel construction, so installation is straightforward with basic tools and no fabrication.
The trade-off is price: a direct-fit CARB compliant converter like the 4481724 costs more upfront. But you save on labor if you install it yourself, and you avoid the risk of fitment issues that can come with universal converters.
Decision rules for your S2000 cat
- Check your state's emissions rules: If you register your S2000 in California or any CARB-adopting state, you must use a CARB compliant converter. The MagnaFlow 4481724 meets that requirement. If you live in a non-CARB state, you can consider EPA-compliant options that may cost less.
- Confirm your S2000's engine and year: The 4481724 fits 2000-2003 S2000s with the 2.0L F20C engine and 2004-2005 S2000s with the 2.2L F22C1 engine. If your car falls outside these years, this converter won't bolt up correctly. Double-check your vehicle's year and engine code before ordering.
- Decide between DIY and shop installation: Because the 4481724 is a direct-fit unit, you can install it at home with jack stands, basic hand tools, and penetrating oil for the old bolts. If you prefer a shop, factor in 1-2 hours of labor. A universal converter would require welding, which adds cost and complexity.
Product facts
- MagnaFlow 2000-2003 Honda S2000 2.0L / 2004-2005 Honda S2000 2.2L California Grade CARB Compliant Direct-Fit Catalytic Converter 4481724: Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481724. Features include free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction. Mandrel-bent tubing maintains consistent exhaust flow, which helps preserve the S2000's high-revving character, and stainless steel resists rust from road salt or moisture.
MagnaFlow 2000-2003 Honda S2000 2.0L / 2004-2005 Honda S2000 2.2L California Grade CARB Compliant Direct-Fit Catalytic Converter 4481724
Fit guidance
Best for
- 2000-2005 Honda S2000 owners in CARB states who need a street-legal, bolt-on catalytic converter
- Drivers who want a direct-fit solution that avoids cutting or welding and keeps the check engine light off
Not for
- S2000 owners in non-CARB states who want a lower-cost universal converter and are comfortable with fabrication
- Vehicles outside the 2000-2005 S2000 model range
