Description
This direct-fit catalytic converter from MagnaFlow is engineered to restore emissions control and eliminate check-engine light faults for compatible BMW models, delivering OEM-grade fit and Federal/EPA compliance. Built with free-flowing mandrel-bent tubing and corrosion-resistant stainless steel, the spun-body design and single laser fusion weld reproduce OE geometry for reliable sealing and thermal efficiency. Designed for a bolt-on installation with included gaskets and hardware, this converter (MagnaFlow 49789) interchanges with OE numbers 18 40 7 522 555 and 18 40 7 522 571 to meet emissions requirements on 2004–2005 BMW 545i, 645Ci, 745i, and 745Li applications.
Features:
- Mandrel-bent tubing for free airflow
- Highly corrosion resistant stainless steel
- OE spun body design for precise fit
- Single laser fusion weld to reduce leaks
- Compact low-mass design for thermal efficiency
- Direct-fit bolt-on installation, no cutting
- Federal/EPA compliant for OBDII emissions
Contents:
- Direct-fit catalytic converter 49789
- Gaskets
- Hardware
Vehicle Fitment:
- 2004–2005 BMW 545i Base
- 2004–2005 BMW 645Ci Base
- 2004–2005 BMW 745i Base
- 2004–2005 BMW 745Li Base