BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series G22 (2021+)

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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
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!
Bosch - Corporate Logo
T#:372884
Part#: 15733
In Stock
$ 82.99

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

$ 74.99 USD
Free Shipping
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$ 74.99 USD
Free Shipping
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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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Eisenmann G2x 330i/430i Sport Performance Muffler System - Chrome Tips
Eisenmann G2x 330i/430i Sport Performance Muffler System - Chrome Tip...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Eisenmann - Corporate Logo
T#:5872671
Part#: B5463.00902.22
Special Order: No Guaranteed ETA
$ 2,552.99 USD
Free Shipping on orders $49 and up
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$ 2,552.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Eisenmann Exhaust Systems GmbH has been a leader in hand built, German made exhaust systems for BMW cars since the company's inception in 1988. These decades of experience grant Eisenmann perspective in designing exhaust systems, granting Eisenmann engineers the ability to create the best exhaust systems possible again and again. After so many years of experience as the best exhaust manufacturer in the world, however, the ability to reinvent and remain creative becomes of paramount importance. The new Eisenmann sport system represents precisely that ability, and is a new approach for Eisenmann. The sport system will showcase Eisenmann's dedication to creating the best possible exhaust tone, adding a powerful exhaust note. Note: Cutting required to install!
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Eisenmann G2x 340i/440i Sport Performance Muffler System - Chrome Tips
Eisenmann G2x 340i/440i Sport Performance Muffler System - Chrome Tip...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Eisenmann - Corporate Logo
T#:5872675
Part#: B5465.00904.11
Special Order: No Guaranteed ETA
$ 3,377.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 3,377.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Eisenmann Exhaust Systems GmbH has been a leader in hand built, German made exhaust systems for BMW cars since the company's inception in 1988. These decades of experience grant Eisenmann perspective in designing exhaust systems, granting Eisenmann engineers the ability to create the best exhaust systems possible again and again. After so many years of experience as the best exhaust manufacturer in the world, however, the ability to reinvent and remain creative becomes of paramount importance. The new Eisenmann sport system represents precisely that ability, and is a new approach for Eisenmann. The sport system will showcase Eisenmann's dedication to creating the best possible exhaust tone, adding a powerful exhaust note. Note: Cutting required to install!
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