This California Grade converter carries CARB Executive Order D-193-171, which makes it legal for sale in all 50 states including California, Colorado, New York and Maine for the engine families that order covers. It uses a spun stainless steel body around a ceramic substrate, with mandrel-bent stainless tubing and OE-style geometry taken from 3D scans, so it bolts in with no cutting or welding. It has a flange inlet and flange outlet, an overall length of 12.5 in and 2 oxygen sensor ports (pre and post-converter).
Specifications
| Type | Direct-Fit Catalytic Converter |
| Grade | California Grade |
| Position | Front |
| Material | Stainless steel body and tubing |
| Substrate | Ceramic |
| Body | Spun body |
| Inlet / Outlet | Flange inlet / flange outlet |
| Overall Length | 12.5 in |
| O2 Sensor Ports | 2 (pre and post-converter) |
| What's in the Box |
|
| Install | Bolt-in direct fit; no cutting or welding required |
| Fitment Notes | Installation is permitted only when the vehicle's Engine Family Number appears in CARB Executive Order D-193-171. Front converter for the 1.9L 4-cylinder |
| Emissions | Covered by CARB Executive Order D-193-171 for the 2004 models listed below; legal for sale in all 50 states including California, Colorado, New York and Maine |
| Finish | Stainless |
| Body Type | Spun |
| Inlet Type | Flange |
| Clamps Included | No |
| Hangers Included | Yes |
| Legality | Legal for sale in all 50 states including California, Colorado, New York and Maine. Installation is permitted only if the vehicle's Executive Order number and Engine Family Number appear in this converter's CARB Executive Order. |
| Quantity | 1 |
| Warranty | Limited 5 year / 50,000 mile construction and emissions |
| Part Number | 444310 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004 | Volvo | S40 | 1.9L L4 |
| 2004 | Volvo | V40 | 1.9L L4 |
Is this converter legal in California?
- Yes. It is covered by CARB Executive Order D-193-171. Installation is permitted only when your vehicle's Engine Family Number appears in that Executive Order, so check the emissions label under the hood against the listed vehicles.
Does it require cutting or welding?
- No. It is a direct-fit, bolt-in replacement built to OE geometry.
What hardware is included?
- It comes with 1 flange gasket, 4 flat washers, 4 bolts and 4 nuts.
How many oxygen sensor ports does it have?
- 2 (pre and post-converter).
What warranty does it carry?
- Limited 5 year / 50,000 mile construction and emissions.
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty






