Blow Off Valves & Diverter Valves for BMW 1 Series E82 (2008-2013)

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Adding a blow off valve or upgrading your diverter valves can change the sound of your vehicle and be an asset in big power setups.
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Burger Motorsports - Corporate Logo
T#:589529
Part#: N54BOVVACADPT2
In Stock
$ 79.00 USD
Free Shipping
$ 79.00 USD
Free Shipping

Upgrade your BMW's performance with the BMS N54 BOV Vacuum Adapter, a plug-and-play solution that enhances engine vacuum functionality. Easily attachable to the throttle body/brake booster vacuum line, this adapter provides two extra 1/8" NPT vacuum ports, offering versatile applications like replacing vacuum lines to diverter valves, connecting boost gauges, and more.

  • Quick and hassle-free installation
  • Two additional 1/8" NPT vacuum ports for multiple applications
  • Ideal for replacing engine vacuum lines to diverter valves
  • Enables a larger diameter boost reference to aftermarket BOV
  • Perfect for adding extra boost gauges and accessories
  • CNC machined for precise fit and durability
  • Dual internal O-rings and retaining clip for a secure, factory-like seal
  • Basic kit includes adapter, two 1/8" NPT caps, and one 1/8" vacuum nipple
  • BOV kit adds two push lock fittings and 1/4" line for Tial BOV installation
  • Made in the USA for quality assurance

Enhance your BMW's performance and functionality with the BMS N54 BOV Vacuum Adapter – a versatile, plug-and-play solution made in the USA.

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Active Autowerke - Corporate Logo
T#:4416
Part#: AABOVKIT-N54
In Stock
$ 565.99

This product was last offered at the strikethrough price on
08-31-2026

$ 529.99 USD
Limited Qty Sale
Free Shipping
$ 565.99

This product was last offered at the strikethrough price on
08-31-2026

$ 529.99 USD
Limited Qty Sale
Free Shipping
As Used on Project E92 335i
When adding boost to the N54 engine, it's important to consider effects throughout the rest of the system. Additional boost can overwhelm the stock BMW diverter valve system and lead to boost leakage, or boost spikes, and lost horsepower. With the factory components in place it's hard to maintain consistently high boost levels. Instead of the weak plastic components of the stock system, Active Autowerke uses a CNC-machined and mandrel-bent aluminum tube with a Venturi blow-off valve in place of the original diverter valves. The blow-off valve dumps overboost into the atmosphere for that distinctive turbo 'whoosh' sound. The single AA BOV is over-sized for the N54 application - taking the place of the two small diverter valves, and verified to handle over 600hp. With the BOV acting properly your turbos and other components are protected from compressor surge caused by excess pressure build-up.

We like the Active BOV better than other forms of diverter and BOV kits because it's tried and true - AA was the original turbo BMW tuners and their experience is second to none. That's why they took the time to engineer their kit to fit perfectly, using the OE-type connector to the throttle body, and high-strength silicone to the lower intercooler tube. Each connection is a tight, leak-free seal. The kit comes complete with the discharge tube, vacuum plugs for the stock hoses, and instructions. The tube is powdercoated in black and with a wrinkle finish for an OE appearance.

This item fits the following BMWs with N54 engine:
2008-2010 E82 BMW 135i 1M
2007-2010 E90 BMW 335i 335xi 335i xDrive
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive
2007-2010 E93 BMW 335i
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FTP Motorsport - Corporate Logo
T#:582198
Part#: SG71393
Special Order: No Guaranteed ETA
$ 200.00 USD
Free Shipping
$ 200.00 USD
Free Shipping
This is a set of upgraded blow off valves for the N54 engine. The recirculating design uses OE DV design to ensure proper emissions and no engine lights. Features: Quicker responding boost with higher flowing valve Increase in horsepower and torque Eliminates boost spikes and leaks Overall accelerations improvements Capable of handling a wider range of boost pressure Easy bolt-on installation Made from CNC machined T6-6061 billet aluminum alloy Fully tunable for boost capacity and response
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Burger Motorsports - Corporate Logo
T#:589530
Part#: N54BOVVACADPT
Ships on Sep 18, 2026
$ 59.00 USD
Free Shipping on orders $49 and up

Enthusiast Bundles - Corporate Logo
T#:37419778
Part#: 054380LA01EBKT
In Stock
Sale - Save 20% $ 1,000.98

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

$ 799.00 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 1,000.98

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

$ 799.00 USD
Free Shipping on orders $49 and up

Refresh and upgrade your front intercooler to ensure you are supplying your engine with the maximum amount of airflow. With the added charge pipe and BOV kit you can drive confidently knowing the plastic charge pipe is replaced with a much stronger metal alternative with added blow off valve for a full performance and sound upgrade!

OEM+ Upgraded Front Mount Intercooler:

Upgrade your N54/N55 performance effortlessly with this "OEM+" Intercooler from ECS Tuning! This premium intercooler is engineered to deliver superior cooling efficiency and increased horsepower without the hassle of extensive bumper/core support modifications.

Key Features:

Enhanced Core Depth: Featuring a robust aluminum bar and plate core, this intercooler ensures optimal heat dissipation for peak performance.
Durable Construction: TIG-welded cast aluminum end tanks provide unmatched durability, replacing the factory's plastic components.
Perfect Fitment: Designed to fit just like the OEM unit, it requires no additional brackets or modifications to the bumper or core support.
Compatibility: Works seamlessly with OE charge pipes and pipe connectors for easy installation.
Benefits:

Improved Cooling Efficiency: Significantly lowers intercooler outlet temperatures, ensuring your engine runs cooler and more efficiently.
Increased Durability: Aluminum end tanks offer enhanced durability and longevity compared to factory plastic construction.
Hassle-Free Installation: No need for trimming the front bumper or modifying the radiator support, making installation straightforward.
Whether you're after increased performance or an OEM purist, the ECS Tuning OEM+ Intercooler is the perfect upgrade for your BMW. Enjoy the benefits of increased horsepower and lower temperatures with an easy, hassle-free installation.

N54 Chargepipe and BOV Kit:

All of the tuning in the world is only as good as the weakest link. More boost in your 135/335 is great! But you will soon learn that some of the factory hardware is not up to the task of handling that extra pressure. One of the first things to fail and cause a boost leak are the factory boost diverter valves. This allows boost to "leak" out of the intake stream and a loss of power from the engine. This ECS Tuning chargepipe upgrade includes a blow-off valve in place of the factory diverter valves. The BOV is higher quality than the diverter valves and will exit intake air to the outside instead of putting it back through the turbo system (which will reduce strain on the turbos). This aluminum chargepipe is also much more robust than the stock plastic factory pipe and the connection to the throttle body is stronger, eliminating another failure point of the stock pipe.

Built-in 1/8" NPT ports allow you to run an additional methanol injection kit (bungs included if you don't want use the ports).

This is a complete kit that includes everything you need to replace the factory chargepipe and diverter valves -

powedercoat chargepipe
ECS Tuning blow-off valve
multiple BOV springs to suit your vacuum/boost needs
vacuum plugs for the stock diverter valve hoses
silicone hose connection to intercooler piping
all hardware and hose clamps with instructions

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