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Rein BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc)

The intake manifold takes incoming air from the intake and distributes it to each cylinder. Over the years the manifolds have gotten more sophisticated and complex. Most of the additional work that it does is emissions-related - recirculating vapors back into the engine to be re-used. But there are also performance innovations such as BMW's DISA variable intake runners. All of the modern innovations have a part behind it and here you will find replacement components.

In some BMW models there are performance improvements with intake manifolds. These intake manifold upgrades use mostly BMW parts and are a direct replacement for your stock manifold. We offer manifolds and kits to make the conversion work easier.

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OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 3.0L
OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 3.0L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402121
Part#: 11617544805
In Stock
$ 177.99 USD
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$ 177.99 USD
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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes.

If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage.

Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold.

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OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 2.5L
OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 2.5L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402120
Part#: 11617544806
Ships in 3 Business Days
$ 246.99 USD
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$ 246.99 USD
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Air adjustment unit controls the path of the air in the intake manifold, allowing either a shorter or longer runner length. A common source of trouble causing low RPM sluggishness and accompanied by a clicking sound from the engine bay.
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OEM Rein Vacuum Pump - BMW
OEM Rein Vacuum Pump - BMW
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:639711
Part#: 11668605976
In Stock at Vendor
$ 364.99

This product was last offered at the strikethrough price on
04-28-2026

$ 181.99 USD
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$ 181.99 USD
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This vacuum pump bolts to the valve cover and is driven off of a small sprocket. Although capable of functioning for many years, the vacuum pump will eventually require replacement for continued operation of your engine. If you have started to notice noise coming from the vacuum pump on your engine, or have noticed that some of the vacuum-powered systems are not functioning properly, it may be time to replace your vacuum pump. This pump should be replaced at the earliest symptoms of failure, as once the pump fails completely, it can drop metallic components, such as bearings, into the valve cover and timing case, leading to complete engine failure.
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Oil Separator Valve
Oil Separator Valve
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594299
Part#: 11617531423
Ships in 3 Business Days
$ 120.81 USD
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$ 120.81 USD
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The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.
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