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 - Corporate Logo
T#:1689
Part#: 30-10048
In Stock
$ 91.00 USD
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$ 91.00 USD
Only available at this price
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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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AFE - Corporate Logo
T#:2653
Part#: 31-10048
Ships in 3 Business Days
$ 97.00 USD
Only available at this price
Free Shipping
$ 97.00 USD
Only available at this price
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.
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AFE - Corporate Logo
T#:18766692
Part#: 90-10601
Ships in 3 Business Days
$ 21.00 USD
Only available at this price
Free Shipping on orders $49 and up
$ 21.00 USD
Only available at this price
Free Shipping on orders $49 and up

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

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DO88 - Corporate Logo
T#:35323507
Part#: LF-250
Ships on Sep 22, 2026
$ 978.99 USD
Only available at this price
Free Shipping on orders $49 and up
$ 978.99 USD
Only available at this price
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.

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