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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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Oil Separation & Breather System (11)

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Genuine BMW PCV Breather Hose - E36 318ti 318is 318ic 318i M42 1.8L ...

T#:367581

Part#: 11151247743

Ships in 1-2 days

Sale - Save 8% $ 38.99

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

$ 35.88 USD

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$ 38.99

This product was last offered at the strikethrough price on
06-15-2026

$ 35.88 USD

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Genuine BMW Extraction Line - E60 E91 E90 E91 N52 3.0L, Z4 N52 3.0L ...

T#:22212

Part#: 11157537701

In Stock

Sale - Save 10% $ 58.99

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

$ 52.95 USD

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Sale - Save 10%

$ 58.99

This product was last offered at the strikethrough price on
03-04-2026

$ 52.95 USD

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Genuine BMW Extraction Line -
This item fits the following BMW Chassis:
E85,E86,E90

Fits BMW Engines including:
N52

Performance Oil Separator Kit - M52/S52

T#:51356040

Part#: 059015LA02KT2KT

Ships on Oct 5, 2026

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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Vacuum Pipe

T#:37159

Part#: 11667575774

Ships in 1-2 days

Sale - Save 5% $ 42.00

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

$ 39.90 USD

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Sale - Save 5%

$ 42.00

This product was last offered at the strikethrough price on
06-25-2026

$ 39.90 USD

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Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16

Fits BMW Engines including:
N55

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Engine Oil Separator Package - Level 2 - E46 325, E39 525i M54 ...

T#:24344785

Part#: M54OILSEPKT

In Stock

Sale - Save 23% $ 173.99

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

$ 133.54 USD

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Sale - Save 23%

$ 173.99

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

$ 133.54 USD

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If you need to perform a complete oil separator system service, this Level 2 kit provides you with all of the main components necessary to service your engine oil separator system. This Level 2 kit includes the following: Oil Separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold Throttle body gasket Throttle body inlet boot ICV rubber grommet Oil dipstick tube o-ring seal It is highly recommended to replace the oil dipstick tube with the updated design by BMW as this also a common place for sludge to build up.

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Crankcase Breather Hose - E46 M3 01-04 Z3M - S54

T#:12911

Part#: 11157831311

In Stock

Sale - Save 8% $ 99.99

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

$ 92.05 USD

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Sale - Save 8%

$ 99.99

This product was last offered at the strikethrough price on
06-15-2026

$ 92.05 USD

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This hose directs the oil & combustion vapors from the valve cover and directs them to the intake manifold where they are put through combustion again in order to reduce emissions. We recommend replacing this hose when replacing the oil separator #11157840446.

This item fits the following BMWs:
2001-2004 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe

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Vacuum Pipe - F22, F23, F30, F31, F32, F33, F34, F36, F87

T#:177071

Part#: 11667613026

In Stock

Sale - Save 7% $ 42.00

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

$ 38.85 USD

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Sale - Save 7%

$ 42.00

This product was last offered at the strikethrough price on
06-15-2026

$ 38.85 USD

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Genuine BMW Vacuum Pipe With Non-Return Valve -
This item fits the following BMW Chassis:
F22,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N20,N26,N55

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Genuine BMW Crankcase Ventilation Dipstick Hose

T#:348228

Part#: 11157532629

In Stock

Sale - Save 8% $ 38.99

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

$ 35.88 USD

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Qty

Sale - Save 8%

$ 38.99

This product was last offered at the strikethrough price on
06-15-2026

$ 35.88 USD

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Genuine BMW Vacuum Hose - E36 318ti 318is 318ic 318i M44 1.9L ...

T#:37499

Part#: 11731435862

Special Order: No Guaranteed ETA

Sale - Save 24% $ 29.99

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

$ 22.93 USD

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Sale - Save 24%

$ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 22.93 USD

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Genuine BMW Hose - 470mm
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44

Covering Outer - E36

T#:45102

Part#: 16131183047

Special Order: No Guaranteed ETA

Sale - Save 11% $ 30.99

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

$ 27.58 USD

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Sale - Save 11%

$ 30.99

This product was last offered at the strikethrough price on
05-02-2026

$ 27.58 USD

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Genuine BMW Covering Outer - Akf/Run.Loss
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44,M50,M52,S52

Pressure Control Valve (PCV) Repair Kit

T#:24079614

Part#: 11121025447

In Stock

Sale - Save 5% $ 288.99

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

$ 274.10 USD

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Sale - Save 5%

$ 288.99

This product was last offered at the strikethrough price on
06-25-2026

$ 274.10 USD

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BMW's B58 engine has been great, but one major weakness is the PCV valve. As stated by BMW, "The PCV's rubber diaphragm seal may fail, causing insufficient engine oil separation. As a result, the engine may emit blue/white smoke from the exhaust tailpipes, shudder during operation, and/or run with reduced power (limp mode). At idle, a high-frequency whistling noise may be heard in the engine compartment, and the malfunction indicator lamp (MIL) may also illuminate." If your BMW is experiencing these issues, there is a very likely chance your PCV has failed. If so we recommend replacing your PCV with this Genuine BMW repair kit! Don't want to spend over $200 for this fix? We also offer T#23980285 which also replaces this valve but at roughly 1/10th the price!

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Genuine BMW Vent Hose - E46 325Ci, E46 325i

T#:32270

Part#: 11157513756

Ships in 3 Business Days

Sale - Save 16% $ 177.99

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

$ 148.91 USD

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Qty

Sale - Save 16%

$ 177.99

This product was last offered at the strikethrough price on
05-14-2026

$ 148.91 USD

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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M56

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Emissions System
- Oil Separation & Breather System (11)

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