Emissions System

VTT B58/S58 Cylinder Head Port Block-Off Kit - BMW B58 Gen1/2/3 (B58/...

T#:49822557

Part#: VTTBS58BLOCK

Ships in 10 Business Days

$ 29.99 USD

Add to Wish List

Qty

$ 29.99 USD

Add to Wish List

The VTT B58/S58 Head Port Block-Off kit is designed to either seal off the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. The Block-Off kit offered by VTT completely seals the factory head ports to prevent oil intrusion and unwanted vacuum leaks. This kit does NOT require any tapping, meaning no metal to get into the engine, etc. You simply tap the plugs into place. Key Features Eliminates oil draw-through into the intake manifold Prevents carbon buildup on intake valves Utilizes precision-machined plugs for boost sealing Fully reversible — Block-offs can be removed if needed No tapping is required. Easy install, by tapping the blocks into place.

Show More Show Less

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

Add to Wish List

Qty

Sale - Save 19%

$ 104.99

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

$ 84.77 USD

Add to Wish List

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)

Show More Show Less

Rear Oxygen Sensor Set - N52, N54

T#:55353594

Part#: 11787545074/5KT2

In Stock

$ 366.99 USD

Add to Wish List

Qty

$ 366.99 USD

Add to Wish List

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.

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

T#:55317713

Part#: BFR1/2O2SKT2

In Stock

$ 400.99

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

$ 337.99 USD

Add to Wish List

Qty

$ 337.99 USD

Add to Wish List

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

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

T#:55857772

Part#: 11787589475KT2

In Stock

$ 335.99 USD

Add to Wish List

Qty

$ 335.99 USD

Add to Wish List

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

T#:56110313

Part#: 11787558055KT

In Stock

$ 307.99 USD

Add to Wish List

Qty

$ 307.99 USD

Add to Wish List

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.

Show More Show Less

Secondary Air Injection Pump

T#:56110341

Part#: 306-006

In Stock at Vendor

$ 427.99

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

$ 323.99 USD

Add to Wish List

Qty

$ 323.99 USD

Add to Wish List

VTT S58 Cylinder Head Port Check Valve Kit - S58 3.0L

T#:49822559

Part#: VTTS58CHECK

Ships in 10 Business Days

$ 69.99 USD

Add to Wish List

Qty

$ 69.99 USD

Add to Wish List

The VTT S58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.

Show More Show Less

VTT B58 Cylinder Head Port Check Valve Kit - B58 Gen1/2/3 (B58/B58TU/...

T#:49822558

Part#: VTTB58CHECK

Ships in 10 Business Days

$ 69.99 USD

Add to Wish List

Qty

$ 69.99 USD

Add to Wish List

The VTT B58 Head Port Check Valve Kit is designed to convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases, but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. VTT's Billet Check Valve kit converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract.

Show More Show Less

Vargas PCV Delete Kit - Cap W/ -10ORB Plug & VTA Catch Can - BMW S55 ...

T#:52164893

Part#: S55PCVCPCCVTA

Ships in 10 Business Days

$ 399.99 USD

Add to Wish List

Qty

$ 399.99 USD

Add to Wish List

The VTT VTA Catch Can Kit is a comprehensive crankcase ventilation solution specifically tailored for the BMW S55 engine.

VTT Low-Profile Crankcase Vent Adapter -16ORB - BMW S58, B58TU ...

T#:51672705

Part#: VTT-S/B58-LP-CC-

Ships in 10 Business Days

$ 41.99 USD

Add to Wish List

Qty

$ 41.99 USD

Add to Wish List

The VTT Low-Profile Crankcase Vent Adapter is the definitive solution for high-boost BMW builds where hood clearance is a premium.

CCV Hose

T#:51391238

Part#: 11127850244

Ships on Sep 28, 2026

Sale - Save 20% $ 99.99

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

$ 79.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 99.99

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

$ 79.99 USD

Add to Wish List

Oil Separator Vent Hose

T#:53326231

Part#: 11617522933

In Stock

Sale - Save 20% $ 22.99

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

$ 18.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 22.99

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

$ 18.39 USD

Add to Wish List

Vacuum Pipe

T#:52586629

Part#: 11157603816

Special Order: No Guaranteed ETA

Sale - Save 20% $ 29.99

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

$ 23.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 29.99

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

$ 23.99 USD

Add to Wish List

Oxygen Sensor Kit - F30/31 N47, E70 M57

T#:55569520

Part#: 13628589844KT2

Ships on Oct 15, 2026

Sale - Save 10% $ 770.99

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

$ 693.88 USD

Add to Wish List

Qty

Sale - Save 10%

$ 770.99

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

$ 693.88 USD

Add to Wish List

Oxygen sensors are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. This kit includes both rear Sensors.

Front Oxygen Sensor - Bank 2 Pre-Cat

T#:55497441

Part#: 11787558087

Ships on Nov 6, 2026

$ 109.99 USD

Add to Wish List

Qty

$ 109.99 USD

Add to Wish List

E70 Return Pipe

T#:52551447

Part#: 11537806706

Ships on Sep 28, 2026

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

Qty

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

Oxygen Sensor

T#:56001972

Part#: 11787596924

Ships on Nov 19, 2026

$ 125.99 USD

Add to Wish List

Qty

$ 125.99 USD

Add to Wish List

Front Oxygen Sensor - Bank 1 Pre-Cat

T#:54780515

Part#: 11787558055

Ships on Oct 19, 2026

$ 99.99 USD

Add to Wish List

Qty

$ 99.99 USD

Add to Wish List

Oxygen Sensor - Priced Each

T#:56291060

Part#: 11787548961

Special Order: No Guaranteed ETA

$ 65.99 USD

Add to Wish List

Qty

$ 65.99 USD

Add to Wish List

Crank Case Ventilation Valve - Priced Each

T#:53326230

Part#: 11158647299

Ships on Aug 11, 2026

Sale - Save 20% $ 80.99

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

$ 64.79 USD

Add to Wish List

Qty

Sale - Save 20%

$ 80.99

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

$ 64.79 USD

Add to Wish List

Project Cars

SELECT YOUR BMW

Sub-Categories

VTT B58/S58 Cylinder Head Port Block-Off Kit - BMW B58 Gen1/2/3 (B58/...

Performance Oil Separator Kit - M52/S52

Rear Oxygen Sensor Set - N52, N54

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

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

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

Secondary Air Injection Pump

VTT S58 Cylinder Head Port Check Valve Kit - S58 3.0L

VTT B58 Cylinder Head Port Check Valve Kit - B58 Gen1/2/3 (B58/B58TU/...

Vargas PCV Delete Kit - Cap W/ -10ORB Plug & VTA Catch Can - BMW S55 ...

VTT Low-Profile Crankcase Vent Adapter -16ORB - BMW S58, B58TU ...

CCV Hose

Oil Separator Vent Hose

Vacuum Pipe

Oxygen Sensor Kit - F30/31 N47, E70 M57

Front Oxygen Sensor - Bank 2 Pre-Cat

E70 Return Pipe

Oxygen Sensor

Front Oxygen Sensor - Bank 1 Pre-Cat

Oxygen Sensor - Priced Each

Crank Case Ventilation Valve - Priced Each

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results