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

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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BMS N54 3.0L BOV Vacuum Adapter

T#:589529

Part#: N54BOVVACADPT2

In Stock

$ 79.00 USD

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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 N54 Blow Off Valve Kit - E82 135i, 1M, E9X 335i ...

T#:4416

Part#: AABOVKIT-N54

In Stock

$ 565.99

This product was last offered at the strikethrough price on
09-01-2026

$ 529.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 565.99

This product was last offered at the strikethrough price on
09-01-2026

$ 529.99 USD

Limited Qty Sale

Add to Wish List

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 Recirculating Blow Off Valve Kit - E82/88 E9X N54 ...

T#:582198

Part#: SG71393

Special Order: No Guaranteed ETA

$ 200.00 USD

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$ 200.00 USD

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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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