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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW G01 X3 xDrive30i B46 2.0L

Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:372884

Part#: 15733

In Stock

$ 82.99

This product was last offered at the strikethrough price on
02-16-2026

$ 74.99 USD

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$ 74.99 USD

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Bosch Universal Oxygen Sensors are perfect for replacing faulty sensors throwing off a check engine lights and causing poor operation and low gas mileage. If you are looking for a cheaper option or are unable to get a hold of the sensor you need, you can reuse part of the original wiring harness to connect this high quality replacement.

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OEM Bosch Post-Cat Oxygen Sensor - B46, B48, N74

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:639157

Part#: 11788631049

In Stock

$ 154.99

This product was last offered at the strikethrough price on
05-07-2026

$ 125.99 USD

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$ 125.99 USD

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price. This is the OEM Bosch oxygen sensor for BMWs with B46, B48, and N74 engines. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Elring Pre-catalyst Gasket Ring - N20 N55 B46/48

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:587719

Part#: 18307581970

In Stock

$ 20.99

This product was last offered at the strikethrough price on
04-29-2026

$ 14.99 USD

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$ 14.99 USD

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Gasket just before the catalytic converter

Elring Exhaust Manifold Gasket - BMW B48 2.0L

For models with the Gen 2 B48 (B46D, B46X, B48E) engines only - Will not fit the earli...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:45483608

Part#: 588.371

Special Order: No Guaranteed ETA

$ 20.99 USD

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$ 20.99 USD

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Prevent exhaust leaks with a brand new exhaust manifold gasket from Elring - located between the turbo exhaust manifold and the cylinder head Replaces BMW # 11628642774

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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW G01 X3 xDrive30i B46 2.0L

Sub-Categories

OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each

OEM Bosch Post-Cat Oxygen Sensor - B46, B48, N74

Elring Pre-catalyst Gasket Ring - N20 N55 B46/48

Elring Exhaust Manifold Gasket - BMW B48 2.0L

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