BMW Intake Parts for BMW 5 Series E39 (1996-2003)

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One thing drivers and cars have in common is the need for air. Induction systems provide a third of the critical necessities for engines to run, so giving your BMW the best way to breathe is paramount in engine performance. If you need to replace your filter, recharge your reusable pod filter, or upgrade your intake, turbos, or intercooler parts, everything can be found below. We have OEM replacements as well as aftermarket performance upgrades to keep your BMW pristine, powerful, and functioning at peak efficiency.

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Rein - Corporate Logo
T#:402121
Part#: 11617544805
In Stock
$ 214.99

This product was last offered at the strikethrough price on
03-05-2026

$ 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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BMC - Corporate Logo
T#:397411
Part#: FB132/01
In Stock at Vendor
$ 84.99 USD
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$ 84.99 USD
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Looking to upgrade your air filter for increased flow and performance? BMC filter allow significantly higher air flow and are perfectly molded in one piece to fit exactly the same as your stock air filter. These filters are constructed from multi-layerd cotton gauze that is pre-oiled and can be cleaned and regenerated using the BMC regeneration kit.
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Rein - Corporate Logo
T#:402120
Part#: 11617544806
Ships in 4 Business Days
$ 246.99 USD
Free Shipping
$ 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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Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:378471
Part#: N203531-20
Ships in 4 Business Days
$ 363.52 USD
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$ 363.52 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Silicone Vaccum Hose - Black - 65 Feet
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:378475
Part#: 5173125797120BLK
Ships in 4 Business Days
$ 175.99 USD
Free Shipping
$ 175.99 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Hitachi Mass Air Flow Sensor - M52TU, M54 Engine (E46, E39, Z3) ...
For vehicles with a production date from 09/1998
Hitachi - Corporate Logo
T#:5691196
Part#: 13621432356
Back Ordered
$ 156.99 USD
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$ 156.99 USD
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Replacement mass air sensor for M52TU 2.5/2.8 and M54 2.5 engines. 3.0" diameter. The mass air sensor/meter measures the volume of air being fed into the engine so that the fuel levels can be adjust for optimal performance. A faulty sensor can lead to improper fuel mixture and rough idle and poor performance and gas mileage. Replace your faulty sensor with a high-quality sensor to restore normal operation.
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AEM Electronics - Corporate Logo
T#:369781
Part#: 30-3000
In Stock
11% off MSRP $ 674.95

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

$ 599.95 USD
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11% off MSRP
$ 674.95

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

$ 599.95 USD
Free Shipping
Increase the power of your vehicle by utilizing a water/meth injection kit. The purpose of water/meth injection is to reduce combustion temperatures and allow you to run higher boost pressures on pump gas. When using meth injection, pump gas will resist detonation much better because the methanol essentially raises the octane rating of the fuel and will allow you to run much more aggressive street tuning. This AEM kit has more features and components than any other comparably priced injection kits on the market. 1 Gallon tank with built in low level switch Boost referenced progressive controller ?Boost Safe? readiness safety system Check valve integrated into nozzle to prevent unintended fluid flow One injector and two nozzles to cover a wide range of HP levels High Pressure 200psi Recirculation-style pump Progressive Controller: Start Injection Boost 1-11psi. Full Injection Boost 6-39psi LED dash light for system status and low fluid warning 20 ft. of injection tubing
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AEM Electronics - Corporate Logo
T#:20815166
Part#: 30-3313
In Stock
12% off MSRP $ 129.99

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

$ 114.99 USD
Free Shipping
12% off MSRP
$ 129.99

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

$ 114.99 USD
Free Shipping
AEM Electronics water/methanol injection nozzles are available in different jet sizes that allow you to select the appropriate jet for your power level. The nozzles are serviceable and can be disassembled for cleaning. Includes interchangeable swirl generators for 250 500 or 1000cc configurations.
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AEM Electronics - Corporate Logo
T#:590418
Part#: 30-3304
In Stock at Vendor
11% off MSRP $ 247.99

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

$ 219.99 USD
Free Shipping
11% off MSRP
$ 247.99

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

$ 219.99 USD
Free Shipping

Upgrade your BMW or MINI with the V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max

This advanced controller optimizes the injection of water/methanol, maximizing power output while ensuring engine safety. With its internal MAP sensor and 35PSI maximum pressure capacity, it offers precise control and reliability under various driving conditions. Experience improved horsepower, torque, and fuel economy with this state-of-the-art controller from a trusted brand.

  • Enhances performance and efficiency for BMW and MINI vehicles
  • Maximizes power output while ensuring engine safety
  • Internal MAP sensor for precise control
  • 35PSI maximum pressure capacity for reliability
  • Improves horsepower, torque, and fuel economy
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AEM Electronics - Corporate Logo
T#:20815164
Part#: 30-3326
In Stock at Vendor
11% off MSRP $ 149.99

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

$ 132.99 USD
Free Shipping
11% off MSRP
$ 149.99

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

$ 132.99 USD
Free Shipping
AEM?s stainless steel Water/Methanol Injection Solenoid (PN 30-3326) eliminates any chance of water/methanol flow into the inlet when the WMI system is not engaged. This affordable water/methanol injection accessory features high flow capability (3,600cc/min) and an impressively low current draw of only 0.75A that does not require the use of an additional relay. The valve body features include 1/8? NPT ports with included push-to-lock ?? hose fittings for easy connection and EPDM seals that stand up to corrosion for years of reliable use. It?s an inexpensive insurance policy to protect your high performance engine regardless of the brand of water/methanol injection system you are using! Features: High flow rating (3600 cc/min @ 150 psi) Low current draw (0.75A @ 13.5V) No additional relay required Standard 1/8?- 27 NPT inlet/outlet with included ?? push-to-lock hose fittings for easy installation Fast response time Tested to 200 PSI Stainless steel enclosure and internals with EPDM seals for corrosion resistance Flying leads simplify connection with user desired connector
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