Blow Off Valves & Diverter Valves for BMW X6 M S63 4.4L

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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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Forge - Corporate Logo
T#:28271173
Part#: FMDV004S
Ships on Aug 14, 2026
Sale - Save 12% $ 23.99

This product was last offered at the strikethrough price on
07-01-2026

$ 21.18 USD
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Sale - Save 12%
$ 23.99

This product was last offered at the strikethrough price on
07-01-2026

$ 21.18 USD
Free Shipping on orders $49 and up
N55, S63 Electric Turbo Diverter Valve
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37034
Part#: 11657601058
Ships in 1 day
7% off MSRP $ 217.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 202.99 USD
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7% off MSRP
$ 217.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 202.99 USD
Free Shipping

The diverter valve is responsible for redirecting boost away from the intake when it's not needed. Other cars use a blow-off valve to vent the pressurized air into the atmosphere (the whoosh sound commonly heard on turbo engines) but BMW and other makers use a diverter valve to keep the air circulating through the intake for emissions purposes. A failing diverter valve will lead to a boost leak as turbocharged air leaks past the seals instead of going into the engine when you want it. This is a minor issue on stock engines but a bigger issue on tuned or heavily modded engines (those will use an aluminum diverter valve instead of the stock plastic). The factory diverter valve is plastic which is prone to cracking and electric which will fail without warning. This is a direct replacement diverter valve for cars with the N55 and S63 (X5M/X6M) engines.

N55 takes 1 diverter valve.
S63 takes 2 diverter valves (1 per turbo).

This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F32,F33,F34,F36
S63 engine applies to X5M/X6M only. Fxx M5/M6 uses S63TU engine and does not use a diverter valve at all.

 

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Forge Motorsport Atmospheric Blowoff Valve - BMW N55 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
07-01-2026

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

This product was last offered at the strikethrough price on
07-01-2026

$ 341.99 USD
Free Shipping on orders $49 and up
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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Forge Motorsport Electronic Diverter Valve (E-DV) - BMW N55 3.0L ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Forge - Corporate Logo
T#:46890667
Part#: FMEDV104R
Ships in 3 Business Days
Sale - Save 10% $ 379.99

This product was last offered at the strikethrough price on
07-01-2026

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

This product was last offered at the strikethrough price on
07-01-2026

$ 341.99 USD
Free Shipping on orders $49 and up
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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