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BMW 525i branch pipe three-way catalytic converter | 5-Series Fit | OEM Quality | Trusted
Engineered for BMW 525i 2.5L (2004–2005), this branch pipe three-way catalytic converter delivers efficient exhaust purification and ensures compliance with Euro emission standards. Built with high-quality ceramic substrates and stainless-steel housing, it guarantees durability, stability, and long service life. Designed as a direct-fit OEM replacement, it restores engine performance while reducing harmful emissions.
Efficient Emission Control
High-efficiency platinum, rhodium, and palladium catalysts.
Converts CO, HC, and NOx into harmless gases, meeting Euro II–V standards.
Enhanced Engine Performance
Reduces exhaust backpressure for smoother acceleration.
Improves fuel efficiency and extends engine life.
Long-Term Durability
409L stainless steel housing ensures corrosion and heat resistance.
Honeycomb ceramic carrier withstands thermal shock and vibration.
OEM-Grade Direct Fit
Designed to match BMW 525i 2.5L original branch pipe dimensions.
Easy installation, no modification required.
| Item | Details |
|---|---|
| Model NO. | BMW 525i Branch Pipe Three-Way Catalytic Converter |
| Car Make | BMW |
| Car Model | 525i (2004–2005) |
| Engine Type | Gasoline 2.5L l6 DOHC |
| Type | Exhaust Pipe / Catalytic Converter |
| Body Material | T409L Stainless Steel |
| Discharge Standard | Euro V |
| Certification | ISO9001, IATF16949, CE, RoHS, E-Mark |
| Noise Source | Engine Noise, Combustion Noise, Aerodynamic Noise, Chassis Noise, Transmission Noise |
| Component | Exhaust Tail Pipe |
| Main Market | North America, Europe, East Asia |
| New or Old | New |
| Installation Position | Front / Branch Pipe |
| Catalyst Carrier | Ceramic Honeycomb |
| Compatible Year Range | 2004–2005 |
| Product Features | High Efficiency, Low Emission, Long Service Life |
| Transport Package | Customized Packaging / Carton |
| Specification | T409L Stainless Steel |
| Trademark | 3waycatalyst |
| Origin | Shandong, China |
| HS Code | 87089200 |
| Production Capacity | 500,000 / Year |
| Dimensions | 66 × 30 × 22 cm |
Reliable Emission Control – Euro-compliant purification system.
Restores Engine Power – OEM replacement ensures optimal performance.
Durable Construction – Built with stainless steel and ceramic substrate.
Bulk Supply Available – Factory direct, competitive pricing for distributors.
Effective for daily urban driving with frequent stops.
Stable performance for long-distance highway driving.
Designed to extend service life of BMW 525i vehicles.
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