Performance Oil Separator Kit - M52/S52

10X Entries Into Our F80 M3 Sweepstakes

T#:51356040

Part#: 059015LA02KT2KT

In Stock

Sale - Save 20% $ 104.99

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

$ 83.70 USD

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Sale - Save 20%

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This product was last offered at the strikethrough price on
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$ 83.70 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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Engine Oil Separator Package - Level 2 - E46 325, E39 525i M54 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:24344785

Part#: M54OILSEPKT

In Stock

Sale - Save 23% $ 173.99

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

$ 133.16 USD

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Sale - Save 23%

$ 173.99

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

$ 133.16 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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Crank Case Vent Hose Kit - S63 4.4L Engine

10X Entries Into Our F80 M3 Sweepstakes

T#:23913949

Part#: CRNKVENTKITKT

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$ 224.99 USD

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$ 224.99 USD

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Elevate your S63 4.4L engine's capabilities with our meticulously designed Crank Case Vent Hose Kit. Crafted from premium-grade materials, this kit ensures superior ventilation, mitigating pressure accumulation within the engine, thereby enhancing its overall performance.

Engineered to precise specifications, our kit seamlessly replaces the OEM vent hoses, guaranteeing a perfect fit. By reducing stress on the engine, it prolongs its lifespan and maintains peak functionality. Rely on this kit to provide unparalleled performance and unwavering reliability for your S63 4.4L engine.

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Oil Separator kit - N63

10X Entries Into Our F80 M3 Sweepstakes

T#:56291074

Part#: 11158636540KT2

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$ 429.67 USD

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$ 429.67 USD

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If your BMW is burning oil, showing unmetered air faults, or suffering from degraded throttle response, a compromised breather system is usually the culprit. The N63 Crankcase Breather Package pairs Genuine BMW oil separators with OE tier Rein connecting pipes. Designed to restore factory level oil separation and sealed vacuum integrity across both cylinder banks

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Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...

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T#:55857772

Part#: 11787589475KT2

In Stock

$ 342.99 USD

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$ 342.99 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.

Rear Oxygen Sensor Set - N52, N54

10X Entries Into Our F80 M3 Sweepstakes

T#:55353594

Part#: 11787545074/5KT2

In Stock

$ 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.

Genuine MINI Stud Bolt M8X31 - 18307598251

T#:48485

Part#: 18307598251

In Stock

$ 9.19 USD

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$ 9.19 USD

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Genuine MINI Stud Bolt M8X31 for Mini

Ensure a secure installation of your Mini's exhaust manifold with the Genuine MINI Stud Bolt M8X31. This metal double-threaded stud bolt is designed for use near the catalytic converter, providing a reliable solution for broken or rusted exhaust manifold studs.

Benefits:

Genuine MINI quality ensures durability and reliability
Designed for use near the catalytic converter for secure installation
Ideal replacement for broken or rusted exhaust manifold studs

Genuine MINI STUD BOLT
Fits BMW Engines including:
N14,N18

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Oil Separator Kit - Level 1

10X Entries Into Our F80 M3 Sweepstakes

T#:15710823

Part#: E46M5411_61KT

In Stock

Sale - Save 24% $ 123.99

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

$ 93.71 USD

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

$ 93.71 USD

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Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. ur Level 1 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

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Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

10X Entries Into Our F80 M3 Sweepstakes

T#:56110313

Part#: 11787558055KT

In Stock

$ 307.99

This product was last offered at the strikethrough price on
08-13-2026

$ 304.99 USD

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$ 304.99 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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Air Adjustment Unit/DISA Valve Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15677538

Part#: 11617533344-KT

In Stock

Sale - Save 25% $ 162.99

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

$ 122.12 USD

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Sale - Save 25%

$ 162.99

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

$ 122.12 USD

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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes. If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage. Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold. Includes new mounting hardware

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Front Oxygen Sensor Set - E9x, E82, E88, Z4

10X Entries Into Our F80 M3 Sweepstakes

T#:55317713

Part#: BFR1/2O2SKT2

In Stock

$ 400.99

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

$ 335.99 USD

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$ 335.99 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 Refresh Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:57543744

Part#: 11158647962KT2

In Stock

$ 265.99

This product was last offered at the strikethrough price on
09-29-2026

$ 264.99 USD

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$ 264.99 USD

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Maintain optimal engine vacuum and prevent oil blow-by failures under hard driving with this complete Crankcase Ventilation Refresh Kit. Aged oil separator valves and heat stressed plastic hoses fail unexpectedly, leading to oil ingestion, loss of power, and damaged rear main or valve cover gaskets from excessive crankcase pressure buildup. Designed as a direct fit refresh, this kit ensures crisp throttle response, proper engine breathing, and total peace of mind on the street or track.

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Cold Climate Oil Separator Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15744065

Part#: 114317400450-KT

In Stock

Sale - Save 41% $ 231.99

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

$ 137.46 USD

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Sale - Save 41%

$ 231.99

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

$ 137.46 USD

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If you are ready to perform a truly complete oil separator system service, our Level 2 kit provides you with all of our Level 1 kit components plus a throttle body gasket, throttle body inlet boot, ICV grommet, and dipstick tube o-ring. Our Level 2 Cold Climate kit includes the following: Oil separator - BMW cold climate recommended Hose from oil separator to dipstick tube - BMW cold climate recommended 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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BorgWarner EGR Valve - F30 F31 F15 F25 F02 F10

T#:44597309

Part#: 11717810871

Ships in 1 Business Day

$ 296.99

This product was last offered at the strikethrough price on
10-22-2026

$ 295.99 USD

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The EGR valve regulates how much exhaust gas is recirculated back into the engine’s intake. Rather than allowing all exhaust gases to exit through the tailpipe, it redirects a portion into the cylinders to mix with the incoming air-fuel mixture. By lowering combustion temperatures, this process helps reduce harmful NOx emissions, ensures compliance with emissions standards, and can even contribute to longer engine life in some cases. If your EGR valve fails, replacing it promptly is essential to keep your vehicle running clean and within emissions regulations.

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CLIP

T#:405498

Part#: 07147544063

Ships in 1 day

$ 2.99 USD

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$ 2.99 USD

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Idle Control Valve Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15744026

Part#: 11611437453-KT

In Stock

$ 173.13 USD

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$ 173.13 USD

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Located in the intake system, this part is a common source of idle issues. This kit includes a new mount and idle control valve grommet

Genuine MINI Socket Housing 4-Polig - 12527543317

T#:40582

Part#: 12527543317

Ships in 3 Business Days

$ 9.99 USD

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$ 9.99 USD

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Genuine MINI SOCKET HOUSING
Fits BMW Engines including:
N12,N14,N51

O2 Sensor Bung and Plug

10X Entries Into Our F80 M3 Sweepstakes

T#:339000

Part#: TEN9949O2S

Ships in 6 Business Days

Starting at $ 12.95 USD

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Starting at $ 12.95 USD

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This weld-in bung allows an O2 sensor to be screwed into your exhaust system. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing.

Genuine MINI Lambda-probe Bracket - 11787547747

T#:37691

Part#: 11787547747

Special Order: No Guaranteed ETA

6% off MSRP $ 51.99

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

$ 48.99 USD

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6% off MSRP

$ 51.99

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

$ 48.99 USD

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Genuine MINI LAMBDA-PROBE BRACKET
Fits BMW Engines including:
N14,N51

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Performance Oil Separator Kit - M52/S52

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

Crank Case Vent Hose Kit - S63 4.4L Engine

Oil Separator kit - N63

Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...

Rear Oxygen Sensor Set - N52, N54

Genuine MINI Stud Bolt M8X31 - 18307598251

Genuine MINI Stud Bolt M8X31 for Mini

Benefits:

Oil Separator Kit - Level 1

Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

Air Adjustment Unit/DISA Valve Kit

Front Oxygen Sensor Set - E9x, E82, E88, Z4

Crankcase Ventilation Refresh Kit

Cold Climate Oil Separator Kit - Level 2

BorgWarner EGR Valve - F30 F31 F15 F25 F02 F10

CLIP

Idle Control Valve Kit

Genuine MINI Socket Housing 4-Polig - 12527543317

O2 Sensor Bung and Plug

Genuine MINI Lambda-probe Bracket - 11787547747

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