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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Forge Motorsport Valve Service Kit
Forge Motorsport Valve Service Kit
Forge - Corporate Logo
T#:28271173
Part#: FMDV004S
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$ 21.18 USD
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Sale - Save 12%
$ 23.99

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Active Autowerke N54 Blow Off Valve Kit - E82 135i, 1M, E9X 335i
Active Autowerke N54 Blow Off Valve Kit - E82 135i, 1M, E9X 335i ...
Active Autowerke - Corporate Logo
T#:4416
Part#: AABOVKIT-N54
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$ 565.99 USD
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$ 565.99 USD
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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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Forge Motorsport Atmospheric Blowoff Valve - BMW N55 3.0L
Forge Motorsport Atmospheric Blowoff Valve - BMW N55 3.0L
Forge - Corporate Logo
T#:46890666
Part#: FMEDV104A
Special Order: No Guaranteed ETA
Sale - Save 10% $ 379.99

This product was last offered at the strikethrough price on
08-29-2026

$ 341.99 USD
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Sale - Save 10%
$ 379.99

This product was last offered at the strikethrough price on
08-29-2026

$ 341.99 USD
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Forge Motorsport's new E-DV (Electronic Diverter Valve) is a British-designed and manufactured solution that combines cutting-edge technology with ease of use, ensuring high quality and plug-and-play installation. This performance unit replaces the factory diverter valve, which is known to fail and can lead to boost loss or spikes, check engine lights, limp mode, and low power output. This particular E-DV is designed as an Atmospheric Blowoff Valve, venting boosted air to the atmosphere without causing any check engine lights or service lights.
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N54 Diverter Valve Shims - Set Of Four
N54 Diverter Valve Shims - Set Of Four
Forge - Corporate Logo
T#:384401
Part#: FMDV-SHIM
Ships in 5 Business Days
Sale - Save 10% $ 4.00

This product was last offered at the strikethrough price on
08-29-2026

$ 3.60 USD
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$ 4.00

This product was last offered at the strikethrough price on
08-29-2026

$ 3.60 USD
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These shims allow you to manually adjust preload on Forge N54 Diverter Valves.
Forge Motorsport Electronic Diverter Valve (E-DV) - BMW N55 3.0L
Forge Motorsport Electronic Diverter Valve (E-DV) - BMW N55 3.0L ...
Forge - Corporate Logo
T#:46890667
Part#: FMEDV104R
Ships in 2 Business Days
Sale - Save 10% $ 379.99

This product was last offered at the strikethrough price on
08-29-2026

$ 341.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 10%
$ 379.99

This product was last offered at the strikethrough price on
08-29-2026

$ 341.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Forge Motorsport's new E-DV (Electronic Diverter Valve) is a British-designed and manufactured solution that combines cutting-edge technology with ease of use, ensuring high quality and plug-and-play installation. This performance unit replaces the factory diverter valve, which is known to fail and can lead to boost loss or spikes, check engine lights, limp mode, and low power output. The E-DV is designed as a Recirculating Diver Valve, recirculating boosted air back to the intake system like the factory diverter valve, but with quicker and enhanced response times.
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