BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW Z3 (1996-2002)

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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 2.5L
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:402120
Part#: 11617544806
In Stock
$ 205.99
$ 173.99 USD
Limited Qty Sale
Free Shipping
$ 205.99
$ 173.99 USD
Limited Qty Sale
Free Shipping
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 Intake Air Adjustment Unit/DISA Valve - M54 3.0L
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:402121
Part#: 11617544805
Ships Jul 22, 2025
$ 209.99 USD
Free Shipping
$ 209.99 USD
Free Shipping

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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Seems Legit Garage - Corporate Logo
T#:2765538
Part#: M50P
Special Order: No Guaranteed ETA
$ 140.00 USD
Free Shipping
$ 140.00 USD
Free Shipping
Get all of the benefits of the legendary BMW M50 intake manifold on your E46 or other M52TU/M54 powered BMW, without the hassle. Retain the ability to revert to the M54 manifold if needed. Designed and manufactured in the USA, this kit spares no cost and uses only quality materials.
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