MagnaFlow Conv DF BMW 04-05 545I 4.4L / 04-05 645CI 4.4L / 04-05 745I 4.4L California - D/S - mag452789 missing-image The Banks PowerPack optimizes and

The Banks PowerPack optimizes and manages engine airflow from start to finish in one beautifully engineered package

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MagnaFlow Conv DF BMW 04-05 545I 4.4L / 04-05 645CI 4.4L / 04-05 745I 4.4L California - D/S - mag452789 missing-image The Banks PowerPack optimizes andMagnaFlow Direct Fit Catalytic converters are designed for easy bolt on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Direct Fit Catalytic converter products do not require welding; cutting or bending; limited applications may require additional welding for optimal installation. PartNumber : mag452789 Description : Conv DF BMW 5 6 04 05 D S OEM Catalytic