Description
The Mishimoto Open Airbox Performance Intake, part number MMAI-G80-21H, is purpose-built for the 2021+ BMW G8X platform, unlocking the induction sound hiding inside the S58B30 twin-turbo engine. This isn’t a generic air intake system dropped into a catalog — it’s a direct-fit, open-element cold air intake engineered specifically around the G80/G82/G83/G87 chassis to let the turbos breathe while amplifying the spool and induction notes BMW enthusiasts chase.
As a cold air intake filter upgrade, this system replaces the factory airbox with an open-element design fitted with two washable, oiled multi-layered cotton air filters, allowing more air into the S58 while isolating that intake air from engine bay heat via rotational-molded intake tubes. Durable steel heat shields, finished in a micro-wrinkle black powder coat, deflect ambient heat and add aggressive styling to the engine bay, while CNC-machined aluminum connectors keep the install leak-free. Whether you’re searching for an air intake filter that changes the way your M2, M3, or M4 sounds under throttle, or simply want a cold air intake system built as a complete bolt-on kit, this Mishimoto intake is engineered to deliver both performance airflow and a more aggressive audible character every time you get on the throttle.
Vehicle Applications
This intake is a direct fit for the S58B30-powered BMW G8X chassis (G80, G82, G83, G87). Coverage includes the BMW M3 Base (2021–2024, 2026), M3 Competition (2021–2026), and M3 Competition xDrive (2022–2026), along with the limited-production M3 CS (2024). On the M4 side, it fits the M4 Base (2021–2026), M4 Competition (2021–2023, 2025–2026), M4 Competition xDrive (2022–2026), M4 Competition Heritage (2023), M4 CS (2025–2026), and M4 CSL (2023). The intake also fits the BMW M2 Base (2023–2026), M2 Coupe (2023–2024, 2026), and M2 CS (2026), all equipped with the 3.0L twin-turbo S58 inline-six.
Features
- Direct fit for 2021+ BMW G8X M2/M3/M4 equipped with the 3.0L S58B30 engine
- Open filter elements and black powder-coated heat shields for an aggressive, sleek look
- Installs in less than one hour with no need to remove the front bumper or undertray
- Steel heat shields deflect heat while allowing maximum flow and sound
- Rotational-molded intake tubes isolate intake air from engine bay heat
- CNC-machined aluminum connectors for maximum durability and a leak-free install
- Passenger-side turbocharger outlet improves flow and durability
- Washable, oiled air filters can be cleaned and refreshed using an available filter re-oil kit
- Backed by the Mishimoto Lifetime Warranty for as long as you own the vehicle
Specifications
- Filter Material: Multi-layered cotton
- Hose Material: Polyethylene
- Hose Color: Black
- Filter Color: Black
- Grade Type: Performance
- Engine Code: S58B30
- Chassis Codes: G80, G82, G83, G87
- Air Filter Part Numbers: MMAF-37562S, MMAF-45575
- Kit Includes: Driver-side and passenger-side intake heat shield assemblies, air filters, intake tube grommets, intake tube couplers, driver-side CNC quick-disconnect fitting, passenger-side aluminum turbocharger outlet, CNC-machined airbox peg kits (5), stainless steel worm gear clamps (4), and mounting hardware
Frequently Asked Questions
What vehicles does the Mishimoto MMAI-G80-21H intake fit?
It is a direct fit for the S58B30-powered BMW G8X chassis, covering the BMW M3 Base (2021–2024, 2026), M3 Competition (2021–2026), M3 Competition xDrive (2022–2026), M3 CS (2024), M4 Base (2021–2026), M4 Competition (2021–2023, 2025–2026), M4 Competition xDrive (2022–2026), M4 Competition Heritage (2023), M4 CS (2025–2026), M4 CSL (2023), and M2 Base (2023–2026), M2 Coupe (2023–2024, 2026), and M2 CS (2026).
How long does installation take?
According to Mishimoto, this intake installs in less than one hour and does not require removing the front bumper or undertray.
What filters does this cold air intake use?
It uses two washable, oiled multi-layered cotton air filters, listed under part numbers MMAF-37562S and MMAF-45575.
How often should I clean and re-oil the air filters?
Mishimoto recommends cleaning and re-oiling the oiled air filter every 10,000–15,000 miles during normal driving, and inspecting it more often if you frequently drive in dusty or off-road conditions. Filter re-oil is not included in the Lifetime Warranty.
What is included in the kit?
The kit includes driver-side and passenger-side intake heat shield assemblies, air filters, intake tube grommets, intake tube couplers, a driver-side CNC quick-disconnect fitting, a passenger-side aluminum turbocharger outlet, five CNC-machined airbox peg kits, four stainless steel worm gear clamps, and mounting hardware.
Does this intake come with a warranty?
Yes, like all Mishimoto BMW products, this intake is backed by the Mishimoto Lifetime Warranty for as long as you own the vehicle.
âš 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.
