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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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Bremmen Parts - Corporate Logo
T#:23980285
Part#: 1112764517PCV
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Though BMW's B58 engine has proven to be mostly reliable, it does have one well-known problem, failure of the PCV Valve. This issue is especially common on cars with upgraded turbos. Signs that your BMW has experienced this failure include misfires, a rough idle, oil in the the intake/chargepipe, or white smoke coming from the exhaust. The good news is that this is easily fixed and is very affordable! This kit contains all of the items necessary to repair your PCV valve and restore the smooth operation of your B58 engine.
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Bremmen Parts - Corporate Logo
T#:2528129
Part#: 11617533400S1
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05-03-2026

$ 94.99 USD
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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. 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. Don't forget to order a valve cover gasket, throttle body gasket, and a new intake boot to make your separator change easier and more comprehensive.
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Bremmen Parts - Corporate Logo
T#:640155
Part#: 11157559528
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This valve cover vent hose helps to vent the crankcase fumes on BMW's with the N51 / N52 6 cylinder engines. If replacing the valve cover, we recommend purchasing this item as well as it often will break while removing it from the valve cover.
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Vargas Turbo Technologies - Corporate Logo
T#:389684
Part#: VTT-N54-PCV
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$ 68.99 USD
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The crankcase oil vent system on the N52/N54 is one of its weakest and cheaply designed systems. We see crankcase vent issues on even stock engines but with more boost the problems are exponential. This Vargas upgraded PCV valve, and an oil catch can, are what the N54 engine needs and may alleviate most of your oil and boost leak issues. The PCV valve is supposed to let oil either return to the oil pan or pass through the intake manifold and get burned up in the combustion chamber. However, BMW used a weak plastic vent valve that doesn't seal well when under boost. Instead of  closing and venting the oil out of the intake, it's forced through this valve and into the intake and coating your valves with oil residue and carbon. Most boost equals more oil forcing its way by. This upgraded N54 PCV valve uses higher grade materials, including aluminum, to provide a better seal and prevent oil from entering the intake. It's an easy install and a must-have item when considering any turbo work.
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Bremmen Parts - Corporate Logo
T#:30629687
Part#: 11157553949
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$ 35.08 USD
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Vargas Turbo Technologies - Corporate Logo
T#:4813265
Part#: VTT-B58-PCV-CAP
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Vargas has developed a solution to problematic PCV systems! Stock diaphragms on the gen-1 B58 Valve cover are fragile and can crack or tear over time. This can cause loss of crankcase vacuum and smoking. The VTT PCV cap replaces the factory plastic cap with a billet aluminum piece which uses a Billet Banjo fitting, and VTT's Vaccum/Boost adapter to move vacuum directly from the head ports to the manifold. This cap will also allow you to run a catch can on the low side if desired. VTT Recommends using this cap alongside their High Side Catch Can and crankcase breather for maximum efficiency. Installation is as simple as popping the stock cap off, removing the diaphragm, and placing the VTT components in place. Kit Includes: One Billet PCV Cap One Billet Banjo Fitting One Vaccum/Boost adapter One line with built-in check valve
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Bremmen Parts - Corporate Logo
T#:641646
Part#: 11617501566S1
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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. Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. 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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Bremmen Parts - Corporate Logo
T#:30629661
Part#: 11157831311
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$ 24.47 USD
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Bremmen Parts - Corporate Logo
T#:640154
Part#: 11157646086
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$ 41.61 USD
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Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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Bremmen Parts - Corporate Logo
T#:8677197
Part#: 13907618643
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$ 38.24 USD
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Allows fuel fumes to vent into the engine's intake
Bremmen Parts - Corporate Logo
T#:35357256
Part#: 11157848340
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$ 43.24 USD
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Vargas Turbo Technologies - Corporate Logo
T#:49822557
Part#: VTTBS58BLOCK
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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.
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Bremmen Parts - Corporate Logo
T#:640153
Part#: 11157646087
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$ 39.98 USD
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Connects to the valve cover over cylinders 5-8. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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Bremmen Parts - Corporate Logo
T#:33746535
Part#: 11617559530
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$ 34.26 USD
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Bremmen Parts - Corporate Logo
T#:48125820
Part#: 11127809512
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Restore proper engine ventilation with this premium replacement Crankcase Breather Valve (11127809512).

Designed to match the performance of the original BMW unit (OE 11-12-7-809-512 / 11-12-7-803-790), this valve maintains correct crankcase pressure, helps prevent oil buildup, and supports clean, efficient engine operation.

Crafted from high-quality, long-lasting materials and shaped to replicate the factory design, it installs easily in place of the stock breather without any modifications required.

Whether you’re addressing pressure-related drivability issues, refreshing your engine’s ventilation system, or performing preventative maintenance, this breather valve provides dependable performance and protects your BMW’s engine for the long haul.

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Vargas Turbo Technologies - Corporate Logo
T#:597641
Part#: VTT-CHECK-2
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$ 36.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

Bremmen Parts - Corporate Logo
T#:27105147
Part#: 11787589475
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$ 101.99 USD
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M7 Speed - Corporate Logo
T#:24577320
Part#: 56-310303-02
In Stock
$ 216.99 USD
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Upgrade your MINI with the M7 Oil Catch Can Kit__xxSTARTxx__/h1

The newly updated R55 through R57 Oil Catch Can kit for MINIs equipped with the N14 engine comes with a "designed-to-fit" stainless steel bracket, mounting hardware and pre-assembled hoses. Installation is super easy...no drilling and no special tools are needed. NOTE: This kit has been redesigned to fit on the firewall directly behind the outlet of the airbox. It uses the factory tab located on the firewall."Forum experts and social hysteria" say an OCC is not needed but we beg to differ. Why do so many MINI owners suffer from carbon buildup on their intake valve? The answer is oil being recycled through the intake tract to be burned. With the M7 Oil Catch Can, your MINI Cooper's engine will be protected from excessive oil and hydrocarbon buildup which leads to performance-hindering oil film and sludge along your intake tract, on your engine control sensors and on your engine's intake valves. Because the 2007 & up MINI is direct injection the intake valves do not benefit from the cleaning action provided by the gasoline as in older port injection engines. Now all the oil blow-by burns onto the intake valves and builds up into a flow choking hydrocarbon mess. The end result is loss of power and a very expensive repair bill. This oil film & sludge can appear in other critical places throughout the engine-- such as the intercooler-- where clean surfaces are critical for maximized heat transfer and on your MAF sensor (Mass Air Flow) where the film will cause the sensor to send a false signal to your ECU killing performance.

By capturing excess oil vapor and particles, the M7 Oil Catch Can ensures that oil film and sludge will not become a factor in your vehicle's performance. If you don't think your engine is pumping oil back through your intake system, remove the breather tube and look at all the oil!. The breather tube connects directly to you intake hose and directs this oily mess back through your engine to be burned.

Now with our exclusive "Exact-Fit" pre-assembled hose kit and brackets installation is super-easy.

Features:

  • Pre-assembled hose assemblies.
  • Stainless steel bracket and mounting hardware
  • Eliminate intake tract oil contamination and intake valve damage.
  • Prevent pre-mature sensor failure
  • Keep engine performance at peak levels
  • Billet Aluminum Construction
  • Bright Black Anodized Finish
  • Laser Etched M7 Logo

The M7 Oil Catch Can is not only functional is a work of automotive performance ART! It is CNC machined from billet aluminum and adds a sharp look to your engine compartment.

All hoses, brackets, clamps, necessary fittings and easy to follow detailed step-by-step instructions are available on this page in .PDF format. The design includes an oil drain plug and an easy to view sight tube which indicated the oil level within the can. The hoses are high quality "Made in the USA" automotive grade designed to withstand the rigors of the under-hood environment and to not degrade when exposed to oil. Beware of other "low cost" catch can systems that use silicone hoses because oil and silicone are not compatible. Silicone hoses will will eventually deteriorate and make an absolute mess of your engine compartment.

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M7 Speed - Corporate Logo
T#:584427
Part#: 56-3M7303
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$ 216.99 USD
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Bremmen Parts - Corporate Logo
T#:8677203
Part#: 11617531423
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Bremmen Parts - Corporate Logo
T#:30629688
Part#: 11157537701
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$ 22.84 USD
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Bremmen Parts - Corporate Logo
T#:27105145
Part#: 11787545075
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$ 90.57 USD
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M7 Speed - Corporate Logo
T#:17339413
Part#: 56-310316-02
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R55-R59 Oil Catch Can Kit for N18 MINI Engines

Introducing the newly updated R55 through R59 Oil Catch Can kit for MINIs equipped with the N16 or N18 engine. This kit includes a "designed-to-fit" stainless steel bracket, mounting hardware, and pre-assembled hoses for easy installation—no drilling or special tools needed. Note: This kit has been redesigned to fit directly behind the outlet of the airbox on the firewall, using the factory tab located on the firewall.

Despite skepticism from "forum experts and social hysteria," an Oil Catch Can (OCC) is essential. Many MINI owners suffer from carbon buildup on their intake valve due to oil being recycled through the intake tract. With the M7 Oil Catch Can, your MINI Cooper's engine will be protected from excessive oil and hydrocarbon buildup, preventing performance-hindering oil film and sludge. Direct injection in 2007 & up MINIs exacerbates the issue, leading to oil blow-by burning onto intake valves, resulting in power loss and expensive repairs.

By capturing excess oil vapor and particles, the M7 Oil Catch Can ensures optimal engine performance. Now with our exclusive "Exact-Fit" pre-assembled hose kit and brackets, installation is super easy.

Features:

  • Pre-assembled hose assemblies
  • Stainless steel bracket and mounting hardware
  • Eliminates intake tract oil contamination and intake valve damage
  • Prevents premature sensor failure
  • Maintains engine performance at peak levels
  • Carbon Fiber canister with billet bright aluminum top and bottom

The M7 Oil Catch Can is not only functional but also a work of automotive performance ART! It features a 100% carbon fiber housing with CNC machined billet aluminum top and bottom, adding a sharp look to your engine compartment.

All hoses, brackets, clamps, necessary fittings, and easy-to-follow detailed step-by-step instructions are included, along with an oil drain plug and an easy-to-view sight tube. The sight tube allows you to monitor the oil level in the can. The hoses are high-quality "Made in the USA" automotive grade, designed to withstand the rigors of the under-hood environment without degradation.

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Vargas Turbo Technologies - Corporate Logo
T#:557962
Part#: VTT-FLAPPER-DELE
Ships in 10 Business Days
$ 57.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

The VTT PCV Flapper delete is used to get rid of the factory flapper, and add a -10 fitting on N54 powered vehicles. This will allow you to run a single or dual external catch can, or your own custom set up.

This fitting is made from 6061-T6 aircraft aluminum anodized black and comes with O-ring, and a stainless steel holding clip.

This part fits the following BMW engines:
2006-2012 N54

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Bremmen Parts - Corporate Logo
T#:35121140
Part#: 16137193479
Ships on Sep 29, 2026
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$ 54.39 USD
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Bremmen Parts - Corporate Logo
T#:47850818
Part#: 11747810831
Ships on Sep 28, 2026
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$ 21.21 USD
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Bremmen Parts - Corporate Logo
T#:26438184
Part#: 11127588417
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Bremmen Parts - Corporate Logo
T#:26238478
Part#: 11157605186
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Upgrade your N14 N18 1.6L Engine with the Vent Hose. This hose connects to the top valve cover with a special hose clip end and extends to the bottom side of the intake manifold, ensuring optimal performance of your Mini. It's a crucial component of the intake system, designed to enhance engine efficiency and longevity.

  • Ensures proper ventilation of the engine
  • Connects securely to the valve cover and intake manifold
  • Facilitates efficient airflow within the engine compartment
  • Compatible with N14 N18 1.6L Engine models
  • Easy to install and replace as needed
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AUTOTECKNIC - Corporate Logo
T#:39971046
Part#: BM-0006-BCG
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$ 65.00 USD
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AutoTecknic - Carbon Competition Fuel Cap Cover - Various BMW and MINI Models is a premium exterior upgrade crafted from genuine carbon fiber, designed to enhance the aggressive styling and performance aesthetic of compatible BMW and MINI vehicles with an easy, OEM-fit installation.
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Bremmen Parts - Corporate Logo
T#:35357254
Part#: 11157589989
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$ 46.99

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$ 36.99 USD
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Bremmen Parts - Corporate Logo
T#:8741204
Part#: 11157501567
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This valve is also commonly called the PCV valve, and is important to maintain a proper idle. When this valve begins to leak, you will get a large vacuum leak that can cause many problems.

Bremmen Parts - Corporate Logo
T#:35357253
Part#: 11157589992
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$ 39.87 USD
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Vargas Turbo Technologies - Corporate Logo
T#:557954
Part#: VTT-CHECK-1
Ships in 1 Business Day
$ 36.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

This is a 1/2" (fits -8AN hos perfectly as well) CNC Billet check valve that can be used for a variety of uses including a vacuum/boost check valve when removing the stock PCV system, and still wanting to run the vacuum to the crankcase. Rated at over 100 psi, with a cracking psi of .25psi.

This part fits the following BMW engines:
2006-2012 N54

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Vargas Turbo Technologies - Corporate Logo
T#:597525
Part#: VTT-VAC-RELIEF
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$ 104.99 USD
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BMW N54 3.0L Billet Vacuum Relief Valve from Vargas Turbo Technologies offers precise control over crankcase vacuum levels. This high-quality billet valve allows users to adjust the vacuum pressure with ease, eliminating guesswork and ensuring optimal engine performance. By simply adding or removing shims, users can tailor the vacuum level to their needs.

  • Customizable Vacuum Levels: Adjust the vacuum pressure using supplied shims to achieve desired performance.
  • Direct Fit: Designed with -10ORB threads for easy installation into VTT modular PCV solutions and VTT Modular CNC valve covers.
  • Versatile Settings: Includes 5 vacuum settings ranging from 10' to 18' of vacuum based on shim configuration.
  • Enhanced Engine Protection: Helps prevent excessive vacuum that could affect engine seals or cause whistling.
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Bremmen Parts - Corporate Logo
T#:35357263
Part#: 11157843150
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The engine crankcase breather hose is a vital part of the Positive Crankcase Ventilation (PCV) system, responsible for directing pressurized air from the engine crankcase to the air/oil separator, also known as the PCV valve. This separator removes oil vapors from the air, allowing the oil to return to the engine while feeding the filtered air back into the intake system to support efficient combustion.

As a byproduct of the combustion process, positive crankcase pressure naturally builds up in the engine. The breather hose operates under constant exposure to heat, pressure, and an air/oil vapor mixture, making it prone to wear and failure over time. Ensuring the breather hose is in proper working condition is crucial for maintaining engine performance, adhering to emissions standards, and preserving the functionality of the PCV system. Promptly replace this component at the first signs of damage or degradation to avoid further complications.

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Vargas Turbo Technologies - Corporate Logo
T#:640192
Part#: VTTB58CATCH2
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This kit uses VTTs popular modular catch can and couples it with a custom CNC 6061 bracket, VTT CNC banjo fittings, VTT 5 ply silicone hose, and Push lock fittings. Install is simple, takes about 30 minutes to 2 hours depending on your skill level, and requires removing one factory hose to install the VTT hoses. Retains OEM fit and finished when installed. This kit stands out from others on the market by using high-quality AN fittings and VTT Banjo adapters. Kit contents: One Catch Can One CNC 6061 bracket Two -10 Low Profile CNC Banjo Fittings Two -10 VTT 5-Ply silicone Vacuum hoses Two -10 Push Lock Fittings Two spring clamps Fits all 2019+ G Series 3/4 BMW vehicles with the B58TU engine. Fits all 2015+ F series BMW vehicles with the B58 engine
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M7 Speed - Corporate Logo
T#:17339406
Part#: 56-310316-01
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$ 206.99 USD
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M7 Oil Catch Can Kit for MINIs

M7 Oil Catch Can Kit for MINIs

Newly Updated Kit for Improved Engine Performance

The newly updated R55 through R59 Oil Catch Can kit for MINIs equipped with the N16 or N18 engine comes with a "designed-to-fit" stainless steel bracket, mounting hardware, and pre-assembled hoses. Installation is super easy... no drilling and no special tools are needed.

Note: This kit has been redesigned to fit on the firewall directly behind the outlet of the airbox. It uses the factory tab located on the firewall.

Why You Need an Oil Catch Can

"Forum experts and social hysteria" may say an OCC is not needed, but we beg to differ. Many MINI owners suffer from carbon buildup on their intake valve due to oil being recycled through the intake tract to be burned.

With the M7 Oil Catch Can, your MINI Cooper's engine will be protected from excessive oil and hydrocarbon buildup, which leads to performance-hindering oil film and sludge along your intake tract, on your engine control sensors, and on your engine's intake valves.

This oil film & sludge can appear in other critical places throughout the engine, such as the intercooler and the MAF sensor (Mass Air Flow), where clean surfaces are critical for maximized heat transfer and engine performance.

Features and Benefits

  • Prevents intake tract oil contamination and intake valve damage
  • Prevents premature sensor failure
  • Keeps engine performance at peak levels
  • Increases flow area by 77% for improved oil separation
  • Includes billet aluminum oil catch can with coalescing oil separation technology and integrated dipstick
  • Comes with two molded oil-resistant silicone hoses with STS technology (available in Red or Black)
  • Includes installation hardware kit and printed instructions
  • 100% carbon fiber housing with CNC machined billet aluminum top and bottom

Easy Installation

With our exclusive "Exact-Fit" pre-assembled hose kit and brackets, installation is super-easy. All hoses, brackets, clamps, necessary fittings, and easy-to-follow detailed step-by-step instructions are included. An oil drain plug and an easy-to-view sight tube are also provided, allowing you to monitor the oil level in the can.

Beware of other "low-cost" catch can systems that use silicone hoses, as oil and silicone are not compatible and silicone hoses will eventually deteriorate, causing a mess in your engine compartment.

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Vargas Turbo Technologies - Corporate Logo
T#:22361073
Part#: VTT-OCC-2X1
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$ 593.99 USD
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VTT is proud to announce a ground-up system designed to give the end-user complete control over their valve cover/ PCV set up. Tired of being told you will run two -10 lines from your VC to your Catch Can? So were we. Now you can run them any way you want, including complete VTA, oil cap one-way breather, etc.

Nothing on the market comes close to the versatility of this setup, and it truly is the ULTIMATE Valve cover and PCV combo.

This option allows you to purchase a ready-to-install kit with all fittings, hoses, check valve, etc for you to bolt on, and go.

Kit Break down is as follows:

Two Catch Cans

One N54 dual can bracket

Banjo Fittings

Vacuum Adapter fitting for Throttle body

Two Hoses from Valve Cover to Cans

Hose from Low side can to Vaccum Adapter fitting

VTA (Vent to Atmosphere) Breather

Inline Check Valve

NOTE This catch can kit is designed to work with the Vargas Modular Valve Cover only and is not compatible with a stock valve cover.

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Vargas Turbo Technologies - Corporate Logo
T#:642075
Part#: VTT-10ORB
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$ 23.99 USD
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$ 23.99 USD
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Vargas Turbo Technologies - Corporate Logo
T#:22394048
Part#: VTTN54VCOCCBLK
Ships in 10 Business Days
$ 2,129.99 USD
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This convenient kit from Vargas includes everything you need, saving you the hassle of sourcing specific fittings for your valve cover-catch can setup. Spend less time searching and more time enjoying your upgraded system!
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Bremmen Parts - Corporate Logo
T#:640156
Part#: 11151705272
Special Order: No Guaranteed ETA
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$ 29.47 USD
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This product was last offered at the strikethrough price on
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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks. Crankcase breather valve used to purge the oil vapor from the engine block into the valve cover. This valve has 4 hoses connected to it, running to the dipstick, valve cover, and air intake.
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Bremmen Parts - Corporate Logo
T#:36981055
Part#: 11657607726
Special Order: No Guaranteed ETA
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Due to weak rubber construction and exposure to heat, this vacuum hose may be brittle and/or broken.

Replace it with this high-quality piece from Bremmen Parts to ensure proper turbocharger functionality.

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Bremmen Parts - Corporate Logo
T#:36710102
Part#: 13627805758
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$ 54.99 USD
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This exhaust backpressure sensor is a critical component of your vehicle's Diesel Particulate Filter (DPF) system, designed to monitor backpressure levels and trigger the regeneration cycle when needed. By ensuring the DPF operates efficiently, this sensor helps maintain optimal engine performance and prolongs the life of your powertrain.

A malfunctioning sensor is a common cause of check engine lights and DPF-related fault codes. If you're encountering issues with regeneration or fault codes, replacing the faulty sensor is essential to restore proper functionality. Choose this high-quality replacement from Bremmen for a reliable solution to keep your DPF system performing at its best.

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Bremmen Parts - Corporate Logo
T#:27105146
Part#: 11787589121
In Stock
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Vaico Oil Separator Valve - E38, E39
We Price Match - Give Us A Call or Chat!
Vaico - Corporate Logo
T#:363292
Part#: 11151705272
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Connects to the vent tube which is attached to the PCV valve
Bremmen Parts - Corporate Logo
T#:30629689
Part#: 11157532649
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Bremmen Parts - Corporate Logo
T#:640147
Part#: 11611432559
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Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine


Bremmen Parts - Corporate Logo
T#:558205
Part#: 11617533329
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Seals the PCV angle connector to the intake manifold
Bremmen Parts - Corporate Logo
T#:8741202
Part#: 11151705272B
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$ 19.07 USD
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Sale - Save 17%
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This product was last offered at the strikethrough price on
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$ 19.07 USD
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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks. Crankcase breather valve used to purge the oil vapor from the engine block into the valve cover. This valve has 4 hoses connected to it, running to dipstick, valve cover, air intake.
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