BMW Intake Parts for BMW E21 320i M10 1.8L

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

AFE - Corporate Logo
T#:1943
Part#: 55-10460
In Stock
$ 21.00 USD
Free Shipping on orders $49 and up

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

Show More Show Less
Rein Silicone Vacuum Hoses - Blue - 5 Meters (3.5mm ID)
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379090
Part#: 11731259996-5
In Stock
$ 38.99

This product was last offered at the strikethrough price on
03-17-2026

$ 33.99 USD
Free Shipping on orders $49 and up
$ 33.99 USD
Free Shipping on orders $49 and up
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.
Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378470
Part#: N203531-5
In Stock
$ 80.05

This product was last offered at the strikethrough price on
06-09-2026

$ 62.99 USD
Free Shipping on orders $49 and up
$ 62.99 USD
Free Shipping on orders $49 and up
Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

K&N Aerosol Air Filter Cleaning Kit -
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#:401641
Part#: 99-5000KT
In Stock
$ 24.00

This product was last offered at the strikethrough price on
07-20-2026

$ 23.99 USD
Free Shipping on orders $49 and up
$ 23.99 USD
Free Shipping on orders $49 and up

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.
Show More Show Less

K&N - Corporate Logo
T#:4005
Part#: 33-2005
In Stock
$ 104.99 USD
Free Shipping
$ 104.99 USD
Free Shipping

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
Show More Show Less
Eventuri - Corporate Logo
T#:396394
Part#: EVE-FLC
Ships in 2 Business Days
$ 30.00 USD
Free Shipping on orders $49 and up
This filter cleaning kit powers away dirt and contaminants leaving your filter in like-new condition.

K&N Air Filter Recharge Kit - Aerosol
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
In Stock
$ 23.99 USD
Free Shipping on orders $49 and up
Preserve & maintain your air filter for a lifetime like it was designed to be used
Rein - Corporate Logo
T#:51848535
Part#: 51731257971-5M
In Stock
New Item
$ 38.66 USD
Free Shipping on orders $49 and up
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.


AFE - Corporate Logo
T#:2653
Part#: 31-10048
Ships in 3 Business Days
$ 97.00 USD
Free Shipping
$ 97.00 USD
Free Shipping
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.
Show More Show Less
AFE - Corporate Logo
T#:1689
Part#: 30-10048
In Stock at Vendor
$ 93.00

This product was last offered at the strikethrough price on
01-28-2026

$ 91.00 USD
Free Shipping
$ 91.00 USD
Free Shipping

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.

Show More Show Less
Rein Silicone Vacuum Hoses - Blue - 3 Feet
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378472
Part#: 11731259996-1
Ships in 1 Business Day
$ 6.11 USD
Free Shipping on orders $49 and up
Replace your cracked or frayed vacuum lines. 3.5mm


K&N - Corporate Logo
T#:4099
Part#: 99-5050
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
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.
Show More Show Less
Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:363139
Part#: N203531-1
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up
Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378471
Part#: N203531-20
Ships in 3 Business Days
$ 363.52 USD
Free Shipping
$ 363.52 USD
Free Shipping
Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Silicone Vaccum Hose - Black - 65 Feet
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378475
Part#: 5173125797120BLK
Ships in 3 Business Days
$ 175.99 USD
Free Shipping
$ 175.99 USD
Free Shipping
Replace your cracked or frayed vacuum lines. 3.5mm

DO88 - Corporate Logo
T#:35323507
Part#: LF-250
Ships on Aug 7, 2026
$ 978.99 USD
Free Shipping on orders $49 and up
  

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.

Show More Show Less