MagnaFlow OEM Grade direct-fit catalytic converter, the front forward unit of the two front converters, built to Federal/EPA emissions requirements for OBDII vehicles. It uses a spun stainless steel body with a single laser fusion weld, a ceramic substrate, and mandrel-bent 16 gauge 409 stainless steel tubing joined with 308 stainless MIG welds. OE-sized barbed hangers are 410 stainless steel, and the bolt-on design installs with no cutting or welding using the included gasket and hardware. Not CARB approved for use in California.
Specifications
| Type | Direct-fit catalytic converter (MagnaFlow OEM Grade) |
| Position | Front forward (pairs with front rearward converter 21-170) |
| Emissions | Federal/EPA compliant (not CARB approved) |
| Material | Stainless steel spun body, 16 gauge 409 stainless tubing, ceramic substrate |
| Sensor Ports | 2 (pre and post converter) |
| Included | Gasket and mounting hardware |
| OEM Replacement | 18 30 7 647 040, 18 30 7 586 733 |
| Pairs With | MagnaFlow 21-170 (front rearward converter) |
| Part Number | 21-169 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2016 | BMW | Z4 | sDrive35i |
| 2011-2016 | BMW | Z4 | sDrive35is |
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
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