The MagnaFlow HM Grade direct-fit catalytic converter replaces the worn factory unit to restore proper emissions performance and keep the check engine light off. It is built from high-strength 16-gauge 409 stainless steel with mandrel-bent tubing that follows the OE flow path, and a spun OE-style body closed by a single laser fusion weld to reduce potential leak points. As an HM Grade converter it meets Federal EPA emissions standards for higher-mileage 49-state vehicles. Gaskets and mounting hardware are included for a bolt-on installation that needs no cutting or welding.
Specifications
| Type | MagnaFlow OE-style direct-fit catalytic converter |
| Position | Front (primary / close-coupled) |
| Grade | HM Grade (Federal/EPA compliant) |
| Material | 16-gauge 409 stainless steel |
| Quantity | 1 (sold individually) |
| OEM Replaces | 18190-RMX-A00 |
| Part Number | 50170 |
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 — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
