Description
The Mishimoto MMAI-G80-21 is a purpose-built performance air intake system engineered specifically for the S58B30-powered BMW G8X platform. Rather than a simple filter swap, this kit replaces the factory airbox with precision rotational-molded thermoplastic housings developed using 3D printing, CAD modeling, and flow bench testing, cutting intake restriction by 13 percent on the driver side and 22.8 percent on the passenger side.
Airbox volume, shape, and material all influence how much cool air actually reaches your engine, and Mishimoto’s engineering team focused on all three when building this air intake system. Two additional ducts open to the wheel wells to feed the airboxes with cooler ambient air, while the thermoplastic construction resists engine bay heat soak far better than typical plastic components. Dual high-flow oiled air filters, built from multi-layered cotton, add filter surface area and airflow beyond the stock paper panel filters, and the whole cold air intake setup is engineered to run safely on a stock ECU tune while amplifying turbocharger spool and bypass valve venting for a more engaging soundtrack under acceleration.
Vehicle Applications
Engineered around the BMW G8X chassis family (chassis codes G80, G82, G83, and G87), this Mishimoto intake fits the BMW M3 Base (2021–2024, 2026), M3 Competition (2021–2026), M3 Competition xDrive (2022–2026), and M3 CS (2024); the BMW M4 Base (2021–2026), M4 Competition (2021–2023 and 2025–2026), M4 Competition xDrive (2022–2026), M4 Competition Heritage (2023), M4 CS (2025–2026), and M4 CSL (2023); as well as the BMW M2 Base (2023–2026), M2 Coupe (2023–2024, 2026), and M2 CS (2026) — all built around the 3.0L twin-turbo inline-six S58B30 engine.
Features
- Reduces intake restriction by up to 22.8 percent for more power potential
- Provides safe operation on a stock ECU tune
- Delivers an aggressive intake tone under acceleration
- Additional fresh air ducts draw cool air from the wheel wells
- Amplifies turbocharger spool and bypass valve venting
- Rotational-molded airboxes and intake tubes provide optimal airflow, outstanding rigidity, and maximum heat-soak resistance
- CNC-machined aluminum connectors for maximum durability and a leak-free install
- Precision-engineered using 3D printing, CAD modeling, and flow bench technology
- CNC-machined passenger-side turbo inlet improves flow and durability
- Installs in less than 1 hour with no need to remove the front bumper or undertray
- Washable oiled filters can be cleaned and refreshed using a Filter Re-Oil Kit for long-term use
- Covered by Patent Nos. US 11,506,157 B2, US 11,773,813 B2, and Patent Pending
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Filter Material: Multi-layered cotton
- Hose Material: Polyethylene
- Hose Color: Black
- Filter Color: Black
- Grade Type: Performance
- Color: Black
- Chassis Codes: G80, G82, G83, G87
- Includes: (1) Turbocharger Inlet Pipe, (1) Mounting Bracket, (1) Mounting Bracket Bolt, (1) Turbocharger Connection O-ring, Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles does the Mishimoto MMAI-G80-21 cold air intake fit?
It fits the 2021+ BMW G8X M2, M3, and M4 lineup (chassis codes G80, G82, G83, G87), including the M3 Base, M3 Competition, M3 Competition xDrive, M3 CS, M4 Base, M4 Competition, M4 Competition xDrive, M4 Competition Heritage, M4 CS, M4 CSL, M2 Base, and M2 Coupe within their listed model years.
How much does this intake reduce intake restriction?
Testing shows a 13 percent reduction on the driver-side intake tract and a 22.8 percent reduction on the passenger-side intake tract.
Is this air intake safe to run on a stock ECU tune?
Yes, the system provides safe operation on a stock ECU tune.
How long does installation take?
Installation takes less than 1 hour and does not require removing the front bumper or undertray.
How do I maintain the oiled air filters?
Clean and re-oil the filters every 10,000–15,000 miles during normal driving, and inspect them more often in dusty or off-road conditions; filter re-oiling is not included in the Lifetime Warranty.
What does this intake kit include?
It includes a Turbocharger Inlet Pipe, a Mounting Bracket, a Mounting Bracket Bolt, a Turbocharger Connection O-ring, and is backed by the Mishimoto Lifetime Warranty.
⚠ WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.
