BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E46 M3 S54 3.2L (1999-2005)

Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...

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T#:21308444

Part#: UVM.63MM.X1

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$ 399.99 USD

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$ 399.99 USD

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Unlock the true sound of your engine with the Valvetronic Designs universal valved muffler kit, a premium T304 stainless steel solution that offers the perfect balance between aggressive performance and neighborhood-friendly quiet at the push of a button.

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E46 M3 Section 1 BimmerWorld By Magnaflow Racing Y-Pipe

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T#:39126847

Part#: 1004309

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$ 549.99 USD

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$ 549.99 USD

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Goes from stock headers to BimmerWorld Racing exhaust.

2.25" (57mm) Exhaust Clamp - Priced Each

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T#:28570866

Part#: NBC225

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Sale - Save 3% $ 24.99

This product was last offered at the strikethrough price on
06-14-2026

$ 24.24 USD

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Sale - Save 3%

$ 24.99

This product was last offered at the strikethrough price on
06-14-2026

$ 24.24 USD

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For secure exhaust connections, choose the 2.25" (57mm) Exhaust Clamp.

Engineered for durability and reliability, this clamp ensures a tight seal for your exhaust system components. Its high-quality construction and corrosion-resistant finish provide long-lasting performance, even in harsh conditions. With easy installation and a precise fit, this exhaust clamp is a must-have for any vehicle owner.

Ensures a tight seal for exhaust system components
High-quality construction for durability
Corrosion-resistant finish for long-lasting performance
Easy installation for convenience
Precise fit for secure connections

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ATP Universal Weld-in O2 Sensor Bung

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T#:367246

Part#: ATP-FLS-022

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$ 12.95 USD

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Adding an Air Fuel Ratio gauge? Or need to add an O2 sensor? ATP has you covered with their universal weld-in O2 sensor bung.

Cable Holder - E38, E39, E46, E52, Z3

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T#:140712

Part#: 61138353711

Special Order: No Guaranteed ETA

$ 8.99 USD

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$ 8.99 USD

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Genuine BMW Cable Holder
This item fits the following BMW Chassis:
E39 M5,E46 M3,E38,E39,E46

Elring Gasket Ring - E46 M3, Z4 M, E9X M3

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T#:45517825

Part#: 738.320

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$ 12.99 USD

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This exhaust gasket ring seals the exhaust headers to the midpipe. This should be replaced every time the exhaust is disassembled. Replaces BMW # 11627830668

Elring EGR Valve Gasket - BMW E31, E34, E36, E38, E39, E46, E52, E53,...

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T#:45517835

Part#: 074.440

Special Order: No Guaranteed ETA

$ 7.99 USD

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$ 7.99 USD

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Seals the EGR valve to the exhaust Replaces BMW # 11727505259

Downpipe To Catback Reducer - Priced Each

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T#:587346

Part#: 006555ECS05A

In Stock

Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-13-2026

$ 29.99 USD

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Sale - Save 25%

$ 39.99

This product was last offered at the strikethrough price on
06-13-2026

$ 29.99 USD

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Direct Fit Catalytic Converter Replacement System

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T#:584535

Part#: 47-46304

Back Ordered

20% off MSRP $ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD

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20% off MSRP

$ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD

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Keep your emissions in check

Offset Oxygen Sensor Wrench- Extended

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T#:640929

Part#: CTA2065

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$ 19.99 USD

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$ 19.99 USD

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Extra length is needed sometimes

Direct-Fit Catalytic Converter - Rear

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T#:384381

Part#: 50416

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$ 1,042.00 USD

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$ 1,042.00 USD

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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications

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Direct-Fit Catalytic Converter - Front E46 Z3 S54 3.2L Engine ...

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T#:375526

Part#: 50415

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$ 1,156.00 USD

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$ 1,156.00 USD

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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications

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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E46 M3 S54 (1999-2005)

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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...

E46 M3 Section 1 BimmerWorld By Magnaflow Racing Y-Pipe

2.25" (57mm) Exhaust Clamp - Priced Each

For secure exhaust connections, choose the 2.25" (57mm) Exhaust Clamp.

ATP Universal Weld-in O2 Sensor Bung

Cable Holder - E38, E39, E46, E52, Z3

Elring Gasket Ring - E46 M3, Z4 M, E9X M3

Elring EGR Valve Gasket - BMW E31, E34, E36, E38, E39, E46, E52, E53,...

Downpipe To Catback Reducer - Priced Each

Direct Fit Catalytic Converter Replacement System

Offset Oxygen Sensor Wrench- Extended

Direct-Fit Catalytic Converter - Rear

Direct-Fit Catalytic Converter - Front E46 Z3 S54 3.2L Engine ...

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