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Emissions System

Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.

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Performance Oil Separator Kit - M52/S52
Performance Oil Separator Kit - M52/S52
Packaged by Turner - Corporate Logo
T#:51356040
Part#: 059015LA02KT2KT
Ships on Oct 5, 2026
New Item
Sale - Save 19% $ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 84.77 USD
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Sale - Save 19%
$ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 84.77 USD
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On M52/S52-equipped BMWs, the factory crankcase ventilation (CCV) system is a notorious weak link. Between brittle plastic corrugated hoses that crumble from heat soak and an internal cyclone diaphragm prone to tearing, a failing CCV leads to massive oil consumption, vacuum leaks, and that dreaded "howling" whistle.

This kit addresses these issues with all new components and hardware. Both oil separator hoses, the cyclone separator itself, the mounting grommet, and the retaining bolts are included. Servicing this system is guaranteed to restore performance lost as a result of worn CCV components.

Kit includes:

Cyclone Separator/Crankcase Pressure Regulator Valve High Performance Silicone Breather Hose Return Hose Mounting Grommet Hex Bolt (3)

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URO Fuel Tank Vent Valve - 13907643106
URO Fuel Tank Vent Valve - 13907643106
URO - Corporate Logo
T#:50031887
Part#: 13907643106
In Stock
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$ 44.99 USD
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$ 44.99 USD
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Replaces broken or failing vent valve.
Rear Oxygen Sensor Set - N52, N54
Rear Oxygen Sensor Set - N52, N54
Packaged by Turner - Corporate Logo
T#:55353594
Part#: 11787545074/5KT2
In Stock
New Item
$ 366.99 USD
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$ 366.99 USD
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Sluggish oxygen sensors do a lot more than just light up your dashboard with an annoying Check Engine Light—they directly choke your BMW’s performance.
Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55
Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...
Packaged by Turner - Corporate Logo
T#:55857772
Part#: 11787589475KT2
In Stock
New Item
$ 335.99 USD
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$ 335.99 USD
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Extreme exhaust heat and carbon buildup degrade your factory oxygen sensors over time, sending lazy data to your DME and robbing you of performance.
Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52
Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52
Packaged by Turner - Corporate Logo
T#:56110313
Part#: 11787558055KT
In Stock
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$ 307.99 USD
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$ 307.99 USD
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Your engine's air fuel ratio needs to be dead on. Worn out factory pre-cat oxygen sensors delay vital data to the DME, leading to sub optimal fueling, lost horsepower, and dangerous hesitation under load.
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Front Oxygen Sensor Set - E9x, E82, E88, Z4
Front Oxygen Sensor Set - E9x, E82, E88, Z4
Packaged by Turner - Corporate Logo
T#:55317713
Part#: BFR1/2O2SKT2
In Stock
New Item
$ 400.99

This product was last offered at the strikethrough price on
07-14-2026

$ 337.99 USD
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$ 337.99 USD
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Over time, that degradation robs your BMW of its crisp throttle response, tanks your fuel economy, and leaves you staring at a failed emissions ticket
Crankcase Ventilation Connecting Pipe - Cylinders 1-4
Crankcase Ventilation Connecting Pipe - Cylinders 1-4
Hamburg Tech - Corporate Logo
T#:50626658
Part#: 11157646086
Ships in 1 Business Day
New Item
$ 57.99 USD
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$ 57.99 USD
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Secondary Air Injection Pump
Secondary Air Injection Pump
Dorman - Corporate Logo
T#:56110341
Part#: 306-006
In Stock at Vendor
New Item
$ 427.99

This product was last offered at the strikethrough price on
07-17-2026

$ 323.99 USD
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$ 323.99 USD
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Crankcase Ventilation Connecting Pipe - Cylinders 5-8
Crankcase Ventilation Connecting Pipe - Cylinders 5-8
Hamburg Tech - Corporate Logo
T#:50626659
Part#: 11157646087
Ships in 1 Business Day
New Item
$ 59.99 USD
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$ 59.99 USD
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URO Crankcase Vent Valve Repair Kit - B58
URO Crankcase Vent Valve Repair Kit - B58
URO - Corporate Logo
T#:55713528
Part#: 11121025447
Ships in 1 Business Day
New Item
$ 222.99

This product was last offered at the strikethrough price on
07-08-2026

$ 219.99 USD
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$ 219.99 USD
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The URO Parts Crankcase Vent Valve Repair Kit is the smart technician's fix for the notorious BMW crankcase ventilation failures.
Secondary Air Injection Pump
Secondary Air Injection Pump
URO - Corporate Logo
T#:50031894
Part#: 11721433958
Ships in 1 Business Day
New Item
$ 302.99 USD
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$ 302.99 USD
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If you’re dealing with emissions-related faults, the Secondary Air Injection (SAI) pump is an important component to check. This system is designed to inject fresh air into the exhaust manifold during cold starts, helping reduce harmful emissions while the catalytic converters warm up. When the SAI pump is damaged or not operating correctly, emissions can increase and fault codes may be triggered. In states that require emissions testing, a failed air pump can easily result in a failed inspection. Replacing a faulty Secondary Air Injection Pump helps restore proper emissions control, clear related fault codes, and ensure your vehicle remains compliant with emissions requirements.
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Rein Pressure Regulator Valve Repair Kit - E53, E60, E63, E64, E65, E66, E70
Rein Pressure Regulator Valve Repair Kit - E53, E60, E63, E64, E65, E...
Rein - Corporate Logo
T#:55821694
Part#: 11127547058
Ships in 3 Business Days
New Item
$ 16.99 USD
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$ 16.99 USD
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This Rein Automotive repair kit allows you to service the internal components of the crankcase breather valve independently. Instead of replacing the entire, costly valve cover or manifold assembly, this kit provides the exact wear items required to rebuild the factory housing back to original operating specifications. All components are manufactured to strict OE tolerances. The diaphragm is molded from premium, oil-resistant elastomers engineered to withstand prolonged exposure to aggressive synthetic lubricants, fuel vapors, and extreme under-hood heat cycles without losing its elasticity or sealing profile.
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Gasket, Secondary Air Valve
Gasket, Secondary Air Valve
Elring - Corporate Logo
T#:54852025
Part#: 700.320
Ships in 1-2 days
New Item
$ 7.99 USD
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$ 7.99 USD
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This secondary air injection control valve gasket from Elring is the perfect solution for keeping your V10 running strong and clean.
Crankcase Vent Pipe & Hardware Kit
Crankcase Vent Pipe & Hardware Kit
Genuine BMW - Corporate Logo
T#:55281771
Part#: M6X16PCVKT
Ships in 2 Business Days
New Item
$ 48.58 USD
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$ 48.58 USD
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Keep your Ultimate Driving Machine performing at its peak with this Genuine BMW Crankcase Breather Hose and Hardware Kit.
Oxygen Sensor
Oxygen Sensor
Meyle - Corporate Logo
T#:55353609
Part#: 11787558054
Special Order: No Guaranteed ETA
New Item
$ 134.99 USD
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$ 134.99 USD
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This Meyle pre-catalytic broadband oxygen sensor is a direct replacement for your tired, slow-responding factory sensor.
CCV Hose
CCV Hose
Bremmen Parts - Corporate Logo
T#:51391238
Part#: 11127850244
Ships on Sep 28, 2026
New Item
Sale - Save 20% $ 99.99

This product was last offered at the strikethrough price on
05-03-2026

$ 79.99 USD
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Sale - Save 20%
$ 99.99

This product was last offered at the strikethrough price on
05-03-2026

$ 79.99 USD
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Oil Separator Vent Hose
Oil Separator Vent Hose
Bremmen Parts - Corporate Logo
T#:53326231
Part#: 11617522933
In Stock
New Item
Sale - Save 20% $ 22.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.39 USD
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$ 22.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.39 USD
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Vacuum Pipe
Vacuum Pipe
Bremmen Parts - Corporate Logo
T#:52586629
Part#: 11157603816
Ships in 8 Business Days
New Item
Sale - Save 20% $ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD
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Sale - Save 20%
$ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD
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Oxygen Sensor Kit - F30/31 N47, E70 M57
Oxygen Sensor Kit - F30/31 N47, E70 M57
Bremmen Parts - Corporate Logo
T#:55569520
Part#: 13628589844KT2
Ships on Oct 15, 2026
New Item
Sale - Save 10% $ 770.99

This product was last offered at the strikethrough price on
07-03-2026

$ 693.88 USD
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Sale - Save 10%
$ 770.99

This product was last offered at the strikethrough price on
07-03-2026

$ 693.88 USD
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Oxygen sensors are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. This kit includes both rear Sensors.
Upstream NOx Sensor
Upstream NOx Sensor
Febi - Corporate Logo
T#:56254774
Part#: 13628589846
Special Order: No Guaranteed ETA
New Item
$ 312.99 USD
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$ 312.99 USD
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Maintain peak performance and emissions compliance on your BMW with this replacement upstream NOx sensor by Febi Bilstein.
Oxygen Sensor
Oxygen Sensor
Febi - Corporate Logo
T#:56254780
Part#: 11787836451
Special Order: No Guaranteed ETA
New Item
$ 63.99 USD
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$ 63.99 USD
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This Febi Bilstein oxygen sensor is designed as a direct OEM-spec replacement to keep your engine management system operating with pin-point accuracy.
Oxygen Sensor
Oxygen Sensor
Febi - Corporate Logo
T#:56254778
Part#: 11781743994
Special Order: No Guaranteed ETA
New Item
$ 62.99 USD
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$ 62.99 USD
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This Febi Bilstein Oxygen Sensor provides a high-quality OEM replacement option built to precise vehicle specifications.
Oxygen Sensor
Oxygen Sensor
Febi - Corporate Logo
T#:56254844
Part#: 11787512973
Special Order: No Guaranteed ETA
New Item
$ 62.99 USD
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$ 62.99 USD
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Maintain peak engine performance and precise air/fuel ratio telemetry with the Febi Bilstein Heated Oxygen Sensor.
Front Oxygen Sensor - Bank 2 Pre-Cat
Front Oxygen Sensor - Bank 2 Pre-Cat
Bremmen Parts - Corporate Logo
T#:55497441
Part#: 11787558087
Ships on Nov 6, 2026
New Item
$ 109.99 USD
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$ 109.99 USD
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E70 Return Pipe
E70 Return Pipe
Bremmen Parts - Corporate Logo
T#:52551447
Part#: 11537806706
Ships on Sep 28, 2026
New Item
Sale - Save 20% $ 129.99

This product was last offered at the strikethrough price on
05-03-2026

$ 103.99 USD
Add to Wish List
Sale - Save 20%
$ 129.99

This product was last offered at the strikethrough price on
05-03-2026

$ 103.99 USD
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Oxygen Sensor
Oxygen Sensor
Bremmen Parts - Corporate Logo
T#:56001972
Part#: 11787596924
Ships on Nov 19, 2026
New Item
$ 125.99 USD
Add to Wish List
$ 125.99 USD
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Front Oxygen Sensor - Bank 1 Pre-Cat
Front Oxygen Sensor - Bank 1 Pre-Cat
Bremmen Parts - Corporate Logo
T#:54780515
Part#: 11787558055
Ships on Oct 19, 2026
New Item
$ 99.99 USD
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$ 99.99 USD
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Meyle Exhaust Gas Temperature Sensor - G30 - B57
Meyle Exhaust Gas Temperature Sensor - G30 - B57
Meyle - Corporate Logo
T#:55461387
Part#: 3148000073
Special Order: No Guaranteed ETA
New Item
$ 61.99

This product was last offered at the strikethrough price on
07-21-2026

$ 60.99 USD
Add to Wish List
$ 60.99 USD
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Your ECU relies heavily on the Exhaust Gas Temperature (EGT) sensor to monitor critical exhaust heat before things get out of hand.
Sensor, Exhaust Gas Temperature
Sensor, Exhaust Gas Temperature
Meyle - Corporate Logo
T#:55461391
Part#: 3148000070
Special Order: No Guaranteed ETA
New Item
$ 59.99 USD
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$ 59.99 USD
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If your turbocharged Ultimate Driving Machine isn’t getting real-time, accurate temperature readouts from the exhaust stream, the ECU instantly pulls timing, limits boost, and drops your car into limp mode
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MEYLE NOx Sensor - Urea Injection - BMW FXX, EXX
MEYLE NOx Sensor - Urea Injection - BMW FXX, EXX
Meyle - Corporate Logo
T#:52621848
Part#: MEX1581
Special Order: No Guaranteed ETA
New Item
$ 291.99 USD
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$ 291.99 USD
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Maintain your BMW’s clean-diesel performance with the MEYLE MEX1581 NOx Sensor.
Crank Case Ventilation Valve - Priced Each
Crank Case Ventilation Valve - Priced Each
Bremmen Parts - Corporate Logo
T#:53326230
Part#: 11158647299
Ships on Aug 11, 2026
New Item
Sale - Save 20% $ 80.99

This product was last offered at the strikethrough price on
05-03-2026

$ 64.79 USD
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Sale - Save 20%
$ 80.99

This product was last offered at the strikethrough price on
05-03-2026

$ 64.79 USD
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Exhaust Pressure Sensor
Exhaust Pressure Sensor
Meyle - Corporate Logo
T#:55030832
Part#: 3148010004
Special Order: No Guaranteed ETA
New Item
$ 57.99 USD
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$ 57.99 USD
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Keep your Ultimate Driving Machine performing at its peak with this replacement BMW exhaust pressure sensor from Meyle.

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