Intake Manifold Assemblies for BMW 3 Series E46 (1999-2005)

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Do you need to replace the entire intake manifold on your BMW? Some factory intake manifolds are considered an upgrade when installed on a different vehicle. Turner Motorsport stocks intake manifold assemblies for repair and upgrade purposes.
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Adjusting Unit for Intake Manifold - E46 323/328, E39 528i 99-00, Z3 2.5, 2.8 99-00
Adjusting Unit for Intake Manifold - E46 323/328, E39 528i 99-00, Z3 ...
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Genuine BMW - Corporate Logo
T#:12210
Part#: 11611440049
Ships in 2 Business Days
3% off MSRP $ 422.26

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$ 409.99 USD
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3% off MSRP
$ 422.26

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

$ 409.99 USD
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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps a engine fault code light. This adjusting unit fits E46, E39 and Z3 with M52 engine.

This item fits the following BMWs:
1999-2000 E46 BMW 323i 323ci 328i 328ci
1999-2000 E39 BMW 528i
1999-2000 Z3 BMW Z3 2.3 Z3 2.8
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Intake Air Adjustment Unit/DISA Valve
Intake Air Adjustment Unit/DISA Valve
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MTC - Corporate Logo
T#:6460321
Part#: 11611440049
Ships in 5 Business Days
$ 135.99 USD
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$ 135.99 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.
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BMW Intake Air Adjustment Unit/DISA Valve | E39 E46 Z3 - M52tu 2.5L / 2.8L Engine
BMW Intake Air Adjustment Unit/DISA Valve | E39 E46 Z3 - M52tu 2.5L /...
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Rein - Corporate Logo
T#:39059265
Part#: 11611440049
In Stock
Sale - Save 6% $ 163.99

This product was last offered at the strikethrough price on
06-29-2026

$ 154.97 USD
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Sale - Save 6%
$ 163.99

This product was last offered at the strikethrough price on
06-29-2026

$ 154.97 USD
Free Shipping on orders $49 and up
Add to Wish List

BMW Intake Air Adjustment Unit/DISA Valve | E39 E46 Z3 - M52 2.5L / 2.8L Engine is designed to regulate airflow into the engine, optimizing performance and fuel efficiency. A faulty DISA valve can cause a variety of issues such as loud noises from the engine bay, hesitation at low RPM, rough idling, and lean codes. If you notice any unusual noise from the valve, it’s important to replace it immediately to prevent further damage. The pin holding the flap can become dislodged and sucked into the motor, causing potentially severe engine damage.

  • Ensures proper airflow into the engine for smoother performance
  • Fixes issues such as rough idle, hesitation, and lean codes
  • Prevents costly engine damage by replacing a faulty DISA valve
  • Easy installation with just four bolts to remove and replace the valve
  • Compatible with BMW E39, E46, and Z3 models with M52 2.5L / 2.8L engines
  • Durable design for long-lasting, reliable performance

Replace your faulty DISA valve to restore engine performance and prevent further damage with this easy-to-install, high-quality replacement part.

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Intake Manifold Adjusting Unit
Intake Manifold Adjusting Unit
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:15445584
Part#: 11611440049
Ships in 1 Business Day
$ 192.99 USD
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$ 192.99 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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Carbon Fiber OEM-Style Intake Manifold - E46 M3
Carbon Fiber OEM-Style Intake Manifold - E46 M3
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Karbonius Composites - Corporate Logo
T#:37521034
Part#: E46AD09-CF-2
Ships in 3 Business Days
$ 1,699.00 USD
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$ 1,699.00 USD
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The CSL Airbox is one of the most demanded improvements among BMW M3 E46 enthusiasts. That is both for performance gain and for the sound it brings to the car. On the other hand, it is a laborious, time-consuming, and expensive modification. For those who are looking for a similar sound to the CSL airbox but are not looking for HP gain, we have developed the Karbonius OEM Style S54 airbox. It is a simplified version of the CSL airbox, that, apart from a louder sound from the engine (+12 dB compared to plastic OEM), gives an awesome appearance and allows for easy installation using the stock elbow and MAF sensor. No need to remap! Regarding power increase, we got +4HP in a recent dyno test compared with the OEM airbox. Not really significant considering that dynos can have a 2% margin error. In conclusion, and pending new tests in the future, we can say no significant power increase and no HP loss. NOTES: Need to install with CSL Crankcase breather hose -- BMW # 11157833649) In SMG version, need to install a Genuine BMW CSL SMG Expansion Tank -- BMW # 21532282549 Fitment: BMW M3 E46 BMW Z4 M
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Genuine BMW Intake Manifold - E46 Z3 E39
Genuine BMW Intake Manifold - E46 Z3 E39
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Genuine BMW - Corporate Logo
T#:14616
Part#: 11611439965
Ships in 8 Business Days
3% off MSRP $ 639.99

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

$ 621.99 USD
Free Shipping on orders $49 and up
Add to Wish List
3% off MSRP
$ 639.99

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

$ 621.99 USD
Free Shipping on orders $49 and up
Add to Wish List


Genuine BMW Intake Manifold -
This item fits the following BMW Chassis:
E39,E46

Fits BMW Engines including:
M52

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