The MagnaFlow 23004 is a direct-fit underbody catalytic converter that restores factory emissions performance and keeps the check engine light off. It uses a spun OE style body sealed by a single laser fusion weld to reduce leak points, 16 gauge 409 stainless steel mandrel-bent tubing, and 410 stainless barbed hangers for a low-mass, thermally efficient design. Installation is bolt-on with the included gaskets and hardware, no cutting or welding required. It interchanges with OE part 18160-RMX-A00.
| Type | HM Grade direct-fit catalytic converter (MagnaFlow) |
| Position | Underbody (secondary) |
| Material | 409 stainless steel (16 gauge); 410 stainless steel hangers |
| Overall Length | 28.25 in |
| Emissions | Federal / EPA compliant; not legal for sale in California, Colorado, New York or Maine (non-CARB) |
| OEM Replacement | 18160-RMX-A00 |
| Part Number | 23004 |
| Quantity | 1 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2011 | Honda | Civic | Hybrid |
| 2009-2011 | Honda | Civic | Hybrid-L |
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.
