BMW Intake Parts for BMW E21 320i M10 1.8L

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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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aFe Restore Kit for Pro5R Oiled Filters
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T#:1943
Part#: 55-10460
In Stock
$ 21.00 USD
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Bring your aFe filter back to life with a Restore kit from aFe. Included is filter cleaner & replacement oil. These air filter oils is designed to not harm MAF sensors, while allowing the filter to catch as much debris as possible.

Used for Pro 5 R filters

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter
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Rein - Corporate Logo
T#:378470
Part#: N203531-5
Ships in 1 Business Day
$ 80.05 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Rein Silicone Vacuum Hoses - Blue - 5 Meters (3.5mm ID)
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T#:379090
Part#: 11731259996-5
In Stock
$ 38.99

This product was last offered at the strikethrough price on
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$ 33.99 USD
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$ 33.99 USD
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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is blue in color, and arrives in a 5 Meter section that can be cut down to size.

Universal High Flow Performance Air Filter - Dry (2.5" inlet) ...
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ECS - Corporate Logo
T#:47644942
Part#: 003675ECS03-02
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$ 39.89 USD
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Universal High-Flow Air Filter

Give your engine the airflow it deserves with this reusable, high-performance air filter—perfect as a direct replacement for an ECS intake system or as the finishing touch for your custom intake project.
Dimensions: 4.5" Base OD • 6" Filter Height • 3.5" Top OD

Upgrade from your restrictive factory filter to an ECS Tuning High-Flow Dry Air Filter and let your engine breathe freely. Improved intake flow enhances power throughout the rev range while helping maintain efficient fuel economy.

Oiled vs. Dry Filters — Which Is Right for You?

Oiled Filters

Offer slightly higher airflow for maximum performance

Require more frequent cleaning

Must be re-oiled after each cleaning

Long-term reusable design saves money over disposable paper filters

Dry Filters

Provide excellent airflow with minimal maintenance

Easily cleaned with warm, soapy water—no oiling required

Still flow significantly better than OE paper filters

Fully reusable and cost-effective

Both versions deliver superior performance over stock filters while offering the long-term benefit of reusability. Choose the option that best fits your maintenance style and performance goals.

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K&N Aerosol Air Filter Cleaning Kit -
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K&N - Corporate Logo
T#:401641
Part#: 99-5000KT
In Stock
$ 24.00 USD
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K&N Aerosol Air Filter Cleaning Kit provides a simple and effective solution to preserve and maintain your K&N air filter, ensuring it delivers optimal performance for a lifetime. This cleaning kit is specifically designed to clean and restore the airflow efficiency of your reusable air filter, saving you money by eliminating the need to purchase replacement filters.

The K&N Aerosol Air Filter Cleaning Kit includes a powerful degreaser that effectively removes dirt, grime, and contaminants from your air filter. Once cleaned, the kit’s specialized oil is used to recoat the filter, ensuring it continues to trap harmful particles while allowing maximum airflow.

Regular maintenance with this kit not only extends the life of your air filter but also enhances your engine’s performance by maintaining high air flow and exceptional filtration. Easy to use, the K&N Aerosol Air Filter Cleaning Kit is an essential tool for keeping your air filter in top condition.

  • Lifetime filter maintenance: Extends the lifespan of your K&N air filter, eliminating the need for replacements.
  • Improved engine performance: Restores airflow efficiency for optimal engine operation.
  • Cost-effective solution: Saves money by allowing you to maintain your existing air filter.
  • Easy application: Simple-to-use aerosol spray for cleaning and re-oiling.
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Eventuri Filter Cleaning Kit
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Eventuri - Corporate Logo
T#:396394
Part#: EVE-FLC
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$ 30.00 USD
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This filter cleaning kit powers away dirt and contaminants leaving your filter in like-new condition.

K&N Performance Drop-In Air Filter - 3.0si, 320i 80-83, 318i 84-8...
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K&N - Corporate Logo
T#:4005
Part#: 33-2005
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$ 104.99 USD
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K&N's drop-in air intake filter is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance drop-in intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase! 

K&N's drop in air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

  • Covered by the K&N Million Mile Limited Warranty
  • Washable and reusable
  • Emissions legal in all 50 states
  • Will not void vehicle warranty
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Universal Throttle Body Coupler - 45 Degree 2.5" (63.50mm) ...
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ECS - Corporate Logo
T#:382969
Part#: 003402ECS03A-16
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This product was last offered at the strikethrough price on
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$ 23.39 USD
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Elevate your BMW project with ECS Tuning silicone couplers and elbows, providing a high-quality, precision-engineered solution for various applications. Whether you're installing an intercooler, fabricating a custom intake system, or pursuing other automotive projects, ECS Tuning delivers reliable performance and durability. Trust ECS Tuning to meet your needs and enhance your BMW project.

  • High-quality silicone couplers and elbows for BMW projects
  • Precision-engineered for reliability and performance
  • Versatile solution for intercooler installations, custom intake systems, and more
  • Ensures durability and longevity for your automotive projects
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OEM Air Filter - 3.0si, E21 320i, 5/6/7-series 77-, E30 318i 84-85, E...
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Mahle - Corporate Logo
T#:3425
Part#: 13721271254
Ships in 2 Business Days
$ 32.80 USD
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Stock replacement air filter for the stock BMW airbox.

This air filter fits the following BMWs:
1975-1976 E9 Coupe - 3.0Si coupe
1976-1981 E12 5 Series - 528i, 533i
1977-1983 E21 3 Series - 320i
1977-1987 E23 7 Series - 733i, 735i
1976-1989 E24 6 Series - 630Cs, 633Csi, 635Csi
1984-1985 E30 3 Series 4 cylinder 318i (M10 engine)
1987-1991 E30 M3 (S14 Engine)
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Plastic Vacuum Tubing Kit - black - 8 Feet
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T#:360488
Part#: 5097T321-8FT-A
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This product was last offered at the strikethrough price on
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$ 27.74 USD
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Ensure optimal engine performance with the replacement of your vacuum system hoses. The vacuum system plays a crucial role in the engine's functionality, transforming it into an efficient pump that influences air-fuel mixture and combustion. Damaged vacuum hoses can lead to various performance issues, from rough idle to difficulties starting the engine. If you're experiencing these issues, it's time to upgrade to this plastic hose with a 2.3mm inner diameter. The hose is black, arrives in an 8-foot section, and can be easily cut to the desired size for a perfect fit.

Key Features:

  • Engine Optimization: Replacing old hoses ensures the vacuum system operates at peak performance.
  • 2.3mm Inner Diameter: Designed to meet specific engine requirements.
  • Black Color: Blends seamlessly with the engine components.
  • 8-Foot Section: Provides flexibility to cut the hose to the required length.
  • Easy Installation: Upgrade without hassle for improved engine efficiency.

Upgrade your vacuum system with this high-quality plastic hose, addressing performance issues and ensuring your engine runs smoothly.

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Universal 10AN ORB To 3/8" Barb
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Radium Engineering - Corporate Logo
T#:31522993
Part#: RAD20-0530
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$ 37.99 USD
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K&N Air Filter Recharge Kit - Aerosol
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This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shi
K&N - Corporate Logo
T#:401640
Part#: 99-5000
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$ 23.99 USD
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Preserve & maintain your air filter for a lifetime like it was designed to be used


BMC Filter Cleaning Kit
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T#:590913
Part#: WA250-500
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$ 24.99 USD
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Mann Engine Air Filter - E12, E21, E23, E24, E28, E30
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Mann - Corporate Logo
T#:580587
Part#: C3394
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$ 34.99 USD
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$ 34.99 USD
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Keep your engine breathing fresh air
Rein Silicone Vacuum Hoses - Black - 5 Meters (3.5mm ID)
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T#:51848535
Part#: 51731257971-5M
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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is black in color, and arrives in a 5 Meter section that can be cut down to size.

Pro Dry S Restore Kit
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AFE - Corporate Logo
T#:18766692
Part#: 90-10601
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$ 21.00 USD
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aFe Pro5R Air Filter - E30 M3, 84-85 318i, 84-85 325e, 84-85 528e, Al...
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AFE - Corporate Logo
T#:1689
Part#: 30-10048
In Stock at Vendor
$ 93.00

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Since 1999, aFe (Advanced FLOW Engineering) has been developing and manufacturing high quality accessories in their facility in Corona, California. Starting with air filters and intake systems, and now expanding into exhaust systems, suspension components, tuning modules, and more, aFe products are a great way to improve the performance of your BMW without altering its fundamental character. Owned by a BMW enthusiast, aFe power is recognized the world over as a leader in quality performance products for your BMW.

  • Constructed with 100% polyurethane
  • Five layers of progressively finer mesh cotton gauze media
  • Washable and reusable for multiple cleaning cycles
  • Excellent dust-holding capacity for a longer service cycle between cleanings
  • Integrated urethane bump seal insures a tight, no leak seal
  • Outflows stock paper filter for improved horsepower and torque

This is a drop-in stock replacement aFe performance air filter that installs into your BMW's factory airbox. This particular filter fits the following BMWs:
E30 M3 (1988-1991)
E30 318i (1984-1985)
E28 528e (1984-1985) and 535i/535is (1985-1988)
E12 5 series, All (1975-1981) - including 528i, 530i, 533i
E23 7 series, All except 745i (1977-1987) - including 730i, 733i, 735i, L7
E24 6 series, All except M6 (1976-1989) - incl. 630CS, 633Csi, 635CSi


This version uses aFe's highest flowing filter media, which uses a lightly oil gauze to filter out dirt and particulates, while allowing more air to flow to the intake. For the best flowing filter, with the best performance gain, we always recommend this standard aFe filter media (often called "Pro5R ", which has a blue pre-oiled filter media). We also carry this filter in the "ProDry" grey filter media, which is oil-free for only slightly less performance and no maintenance.

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Silicone Coupler - Straight 3 5/8" (92mm)
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T#:377483
Part#: 003402ECS01A-07
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ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

  • Enhances vehicle performance
  • Durable construction for long-lasting reliability
  • Specifically designed for BMW vehicles
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Genuine BMW Vacuum Hose
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Genuine BMW - Corporate Logo
T#:37535
Part#: 11747797129
In Stock
7% off MSRP $ 44.99

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

$ 41.99 USD
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7% off MSRP
$ 44.99

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

$ 41.99 USD
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Genuine BMW Vacuum Hose Black - 3,5X2,0
Forge Motorsport Valve Service Kit
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Forge - Corporate Logo
T#:28271173
Part#: FMDV004S
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aFe ProDry S Air Filter - E30 M3, 84-85 318i, 84-85 325e, 84-85 528e,...
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AFE - Corporate Logo
T#:2653
Part#: 31-10048
Ships in 2 Business Days
$ 97.00 USD
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This is a drop-in stock replacement aFe performance air filter that installs into your BMW's factory airbox. This particular filter fits the following BMWs:

E30 3 series : 318i 325e 1984-1985
E30 3 series : M3 1987-1991
E28 5 series : 528e 1984-1985
E28 5 series : 533i 535i 535is 1983-1988
E21 3 series : 320i 1977-1983
E12 5 series : 528i 530i 1977-1981
E24 6 series : 633csi 635csi 1979-1989

This version has an oil-free filter media for less maintenance. For the best flowing filter, with the best performance gain, we always recommend the standard aFe "Pro5R " filter (which has a blue pre-oiled filter media), but this oil-free filter flows only slightly less than the blue Pro5R style aFe filter, and requires no re-oiling after cleaning the filter.
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Genuine BMW Vacuum Hose
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Genuine BMW - Corporate Logo
T#:367729
Part#: 11747797177
Ships in 1 day
3% off MSRP $ 35.99

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$ 34.99 USD
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3% off MSRP
$ 35.99

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$ 34.99 USD
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Genuine BMW Engine Air Filter
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Genuine BMW - Corporate Logo
T#:206360
Part#: 13721278138
Ships in 1 day
7% off MSRP $ 45.99

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$ 42.99 USD
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7% off MSRP
$ 45.99

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

$ 42.99 USD
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Genuine BMW Air Filter Element

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,S14

Genuine BMW Air Flow Sensor Boot - E21 320i
Foe vehicles with production date from 09/1979
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Genuine BMW - Corporate Logo
T#:7212
Part#: 13511267133
Ships in 2 Business Days
5% off MSRP $ 87.99

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$ 83.99 USD
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$ 87.99

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Genuine BMW FUEL PREPARATION SUCTION HOOD 13511267133.--

This item fits the following BMWs:
BMW 3 Series - 320i

--.

Fits BMW Engines including:
M10

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Genuine BMW Screw - 11617535850
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T#:36510
Part#: 11617535850
In Stock
14% off MSRP $ 18.82

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$ 16.20 USD
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14% off MSRP
$ 18.82

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

$ 16.20 USD
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Genuine BMW SCREW
Mishimoto Silicone Transition Coupler - 3in. To 3.5in. - Black ...
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Mishimoto - Corporate Logo
T#:25241773
Part#: MMCP-3035B
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$ 11.99 USD
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This transition coupler is constructed of high-quality heat resistant silicone, making it useful for fitting air intakes, intercooler piping, and more.
3MM Silicone Vacuum Hose - Red - 9 Feet
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Forge - Corporate Logo
T#:370915
Part#: VC03R
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$ 14.99 USD
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Upgrade Your BMW with Forge 3MM Silicone Vacuum Hose - Red - 9 Feet

Upgrade your BMW's vacuum system with the Forge 3MM Silicone Vacuum Hose in Red, a high-quality solution designed for optimal performance and durability. This 9-foot silicone vacuum hose provides superior flexibility and resistance to extreme temperatures, making it ideal for various automotive applications. Engineered with precision, it ensures reliable vacuum pressure for efficient engine operation and component functionality. Whether you're replacing worn-out hoses or customizing your BMW's vacuum setup, the Forge Silicone Vacuum Hose offers reliability and performance you can trust.

  • High-quality silicone construction for durability
  • Superior flexibility for easy installation
  • Resistant to extreme temperatures
  • Ensures reliable vacuum pressure for efficient engine operation
  • Ideal for various automotive applications

Car suffering from vacuum leaks? This vacuum hose has a 3mm inner diameter. 

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46.5mm To 61.0mm Silicone Coupler - Each
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ECS - Corporate Logo
T#:28570863
Part#: 017623ECS08A
In Stock
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For optimal performance, consider the 46.5mm To 61.0mm Silicone Coupler.

Engineered with durability and functionality in mind, this silicone coupler provides a reliable connection for various components in your vehicle's intake or cooling system. Its smooth interior surface promotes efficient airflow, while its flexible and reinforced construction ensures a secure fit and prevents leaks. Enjoy hassle-free installation and enhanced performance with this premium silicone coupler.

  • Durable silicone construction
  • Smooth interior surface for efficient airflow
  • Flexible and reinforced design prevents leaks
  • Secure fit for reliable performance
  • Hassle-free installation
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K&N Air Filter Squeezable Recharge Kit
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K&N - Corporate Logo
T#:4099
Part#: 99-5050
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$ 18.99 USD
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Cleaning and re-oiling your K&N filter will prolong its life and maintain K&N's performance advantage. You should clean your filter every year with water and K&N's cleaning solution and re-oil the filter every two years. K&N air fitlers come pre-oiled.
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Conti Tech Vacuum Hose (3.5x7.5) - 1 Meter
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Continental - Corporate Logo
T#:374693
Part#: 11727545323
In Stock
$ 8.25 USD
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Used in many locations on the engine

4MM Silicone Vacuum Hose - Red - 9 Feet
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Forge - Corporate Logo
T#:370918
Part#: VC04R
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$ 15.99 USD
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Enhance Engine Performance with Silicone Vacuum Line

Upgrade your car's vacuum system with the Silicone Vacuum Line, a vital component that significantly impacts engine performance. Engineered to resist heat and contaminants, this silicone hose promises exceptional durability, ensuring prolonged and reliable operation.

Featuring an inner diameter of 4mm and a vibrant red color, this silicone hose arrives in a 9-foot section, offering the flexibility to customize lengths as needed. Damaged vacuum hoses can lead to various performance issues, from rough idling to engine starting problems. Promptly replace worn-out hoses to optimize your vehicle's overall performance.

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter
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Rein - Corporate Logo
T#:363139
Part#: N203531-1
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$ 12.99 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

1 Meter Vacuum Hose (3.5x7.5)
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Continental - Corporate Logo
T#:9448313
Part#: 11727545323-1M
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$ 7.99 USD
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Used in many locations on the engine

Silicone Coupler - Straight 3" (76.20mm)
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ECS - Corporate Logo
T#:376702
Part#: 003402ECS01A-06
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Silicone Coupler - Straight 3" ID (76.20mm) x 3" L

No matter the project, ECS Tuning silicone couplers and elbows offer a high-quality, precision-engineered solution to your needs. Whether you're installing an intercooler, fabricating a custom intake system, or whatever else you can dream up, ECS Tuning has you covered.

  • High-quality silicone construction for durability
  • Precision-engineered design ensures a perfect fit
  • Versatile solution for various automotive projects
  • Enhances performance and reliability
  • Compatible with BMW and other vehicles
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12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose ...
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ECS - Corporate Logo
T#:19825269
Part#: 2101
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Genuine BMW Hose Clamp 07129952104
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T#:6533
Part#: 07129952104
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$ 3.99 USD
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GENUINE BMW HOSE CLAMP 07129952104


Vacuum Hose (3.5x7.5) - 1 Meter
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Genuine BMW - Corporate Logo
T#:53644191
Part#: 11727545323-1
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Rein Silicone Vaccum Hose - Black - 65 Feet
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Rein - Corporate Logo
T#:378475
Part#: 5173125797120BLK
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Replace your cracked or frayed vacuum lines. 3.5mm
Nozzle Mounting adapter for hose
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SnowPerformance - Corporate Logo
T#:31522909
Part#: 40110
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$ 31.99 USD
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Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
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Rein - Corporate Logo
T#:378471
Part#: N203531-20
Ships in 3 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 Vacuum Hoses - Blue - 3 Feet
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Rein - Corporate Logo
T#:378472
Part#: 11731259996-1
In Stock
$ 6.11 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Genuine BMW Hose - 11721260149
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Genuine BMW - Corporate Logo
T#:22366
Part#: 11721260149
Ships in 5 Business Days
5% off MSRP $ 20.99

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

$ 19.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 20.99

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

$ 19.99 USD
Free Shipping on orders $49 and up


Genuine BMW HOSE.--

This item fits the following BMWs:

BMW 2002 - 2002
BMW 3 Series - 320i

--.

Fits BMW Engines including:
M10

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BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm) ...
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ECS - Corporate Logo
T#:376708
Part#: 003402ECS01A-03
Ships in 8 Business Days
Sale - Save 40% $ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 17.99 USD
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Sale - Save 40%
$ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 17.99 USD
Free Shipping on orders $49 and up

Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

  • Provides a secure and leak-free connection
  • Engineered for durability and flexibility
  • Straight design for easy installation
  • Perfect fit for BMW and MINI vehicles
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Do88 Intake System, BMW 320i 330e 330i G20 G21
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DO88 - Corporate Logo
T#:35323507
Part#: LF-250
Ships on Jun 23, 2026
$ 978.99 USD
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Introducing the do88 Intake System for BMW 320i and 330i G20 – Engineered for Maximum Performance!

At do88, we understand that filtration, airflow, and heat management are crucial when designing an intake system for turbocharged engines.

Our intake system is designed to provide the turbo with excellent filtration, an optimized airflow path, and consistently low inlet temperatures. One of the key challenges with the B48/B46 engine is the intake system’s location near the exhaust manifold, which generates intense heat and causes rapid heat soak.

High intake air temperatures (IATs) can significantly reduce engine performance, as hot, less dense air makes it harder for the turbo to build boost efficiently. To address this, our fully sealed intake system minimizes heat exposure and maintains low IATs. However, fully sealed systems can face airflow restrictions due to the factory airbox’s single air feed. We resolved this by adding a secondary air feed and incorporating a heat shield into the airbox design to block heat from the exhaust manifold. The large 7” airbox ensures ample airflow around the filter and accommodates strut braces.

We replaced the stock intake hose with a high-flow 102mm (4”) mandrel-bent aluminum pipe paired with a custom silicone hose. The system also features a custom-designed air filter with tightly woven cotton gauze for exceptional filtration. The filter is washable, reusable, and built for long-lasting performance.

Unlike the stock air filter box and intake hose, which are designed with silencers to reduce turbo and induction noise, the do88 system eliminates these elements. This allows for a more pronounced and engaging turbo spool and induction sound, giving you a truly dynamic driving experience.

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3" To 2.5" Silicone Coupler 3" Length
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ECS - Corporate Logo
T#:363896
Part#: 003402ECS04A-02
Ships on Sep 8, 2026
Sale - Save 10% $ 9.99

This product was last offered at the strikethrough price on
05-02-2026

$ 8.99 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 9.99

This product was last offered at the strikethrough price on
05-02-2026

$ 8.99 USD
Free Shipping on orders $49 and up

3" To 2.5" Silicone Coupler 3" Length

Enhance the performance and durability of your BMW or MINI with the 3" To 2.5" Silicone Coupler 3" Length. This silicone coupler provides a reliable connection between components, ensuring optimal airflow and reducing the risk of leaks. Engineered for durability and heat resistance, it withstands high temperatures and harsh conditions. Upgrade your BMW or MINI with this premium silicone coupler for improved performance.

  • Reliable connection for optimal airflow
  • Reduces the risk of leaks for enhanced performance
  • Engineered for durability and heat resistance
  • Fits both BMW and MINI models
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4MM Silicone Vacuum Hose - Black - 9 Feet
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Forge - Corporate Logo
T#:370919
Part#: VC04B
Back Ordered
$ 14.99 USD
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 
Air Filter - E21 320i 1977-1979
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Mahle - Corporate Logo
T#:7321
Part#: 13721262600
Back Ordered
$ 32.99 USD
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Replacement air filter for stock airbox. This is a high quality replacement filter, made by an original equipment manufacturer (OEM) such as Mahle or Mann.

This item fits the following BMWs:
1977-1979 E21 BMW 320i
1977-1982 E21 BMW 323i
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4MM Silicone Vacuum Hose - Blue - 9 Feet
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Forge - Corporate Logo
T#:370917
Part#: VC04
Back Ordered
$ 14.99 USD
Free Shipping on orders $49 and up
Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 


Forge Silicone Vacuum Hoses
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Forge - Corporate Logo
T#:558490
Part#: FORGEVAC
Ships on Jul 7, 2026
Starting at $ 14.99 USD
Free Shipping on orders $49 and up
Starting at $ 14.99 USD
Free Shipping on orders $49 and up
Car suffering from vacuum leaks? Choose from a 4mm, 5mm, or 6mm diameter vacuum hose from Forge to fix your leak and bring your BMW back to life.
BMS Billet Water/Methanol Injection Tank Cap With Safety Check Valve ...
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Burger Motorsports - Corporate Logo
T#:20815185
Part#: BMSWMITC
In Stock
$ 59.00 USD
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The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out! Each cap is CNC machined in the USA from a solid block of billet aluminum, engraved with the BMS logo, and anodized blue for protection. Check valve piston must be lightly lubricated if tank shows signs of vacuum. One drop of penetrating oil or motor oil in the top will keep the check valve operational. Features and Benefits Integrated heavy-duty check valve lets air in but not out Specifically designed to prevent evaporation Keeps vapors inside the tank Made from a solid block of billet aluminum Blue anodizing for corrosion protection Exaggerated grips for easy removal Integrated heavy-duty o-ring Made in the USA
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