MagnaFlow's California Grade CARB-compliant direct-fit catalytic converter 5571981 replaces the rear underbody converter and keeps the check-engine light off. The spun-body design and single laser-fusion weld replicate OE geometry to reduce leak points, while free-flowing mandrel-bent tubing and a compact low-mass body support thermal efficiency and smooth exhaust flow. High-strength 16-gauge 409 stainless steel tubing and 410 stainless barbed hangers resist corrosion for long service life. Installation requires no cutting or welding, and the included gaskets and hardware ensure a proper seal. This converter meets California Air Resources Board requirements under Executive Order D-193-137 for legal use in California and CARB-regulated states.
| Type | California Grade CARB-compliant Direct-Fit Catalytic Converter |
| Position | Rear (underbody) |
| Material | 409 Stainless Steel (16-gauge) |
| Emissions | California CARB compliant — EO# D-193-137 (legal in all 50 states) |
| Quantity | 1 |
| Part Number | 5571981 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2009 | Ford | Fusion | SE |
| 2006-2009 | Ford | Fusion | SEL |
| 2006 | Lincoln | Zephyr | Base |
| 2006-2009 | Mercury | Milan | Base |
| 2006-2009 | Mercury | Milan | Premier |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
