OVERVIEW
The BMS Competition intake is a complete airbox upgrade for G-chassis four-cylinder BMWs. A new high-flow lower airbox and a lid with a clear inspection window house an oversized inverted cone filter, while a smooth 3.5" intake tube takes the place of the factory accordion hose and resonator to cut turbulence ahead of the turbo.
The factory cold air duct and inlet are retained, so the filter is still fed outside air. Expect a noticeable increase in airflow, quicker throttle response and a louder induction note. Select the model-year version that matches your car: 2025 and later models need a vacuum connection on the lower airbox, and the parts for it come with that option.
SPECS
- Engines: BMW B46 / B48 2.0L turbo inline-4 (including 330e plug-in hybrid)
- High-flow lower airbox with lid featuring a clear inspection window
- Smooth 3.5" intake tube replaces the factory accordion hose and resonator
- Oversized 1123 inverted cone filter with built-in velocity stack: blue oiled, red oiled or dry extendable
- Retains OEM cold air ducting and inlet
- Gain claimed by the manufacturer: 12+ horsepower and roughly 50% more airflow than stock
- 2025 and later versions add a vacuum fitting kit; lower airbox requires a 3/8" hole
PARTS INCLUDED
- (1) Airbox lid with clear inspection window
- (5) Stainless M6 x 1.0 x 10 mm button-head airbox lid screws
- (2) Stainless M4 x 0.7 x 8 mm MAF sensor screws
- (1) High-flow airbox bottom
- (1) Inverted cone renewable performance filter (blue, red or dry)
- (1) 3.5" high-flow intake tube
- (1) 3.5" silicone coupler
- (2) Heavy-duty 4" hose clamps (90–110 mm)
- (1) 11.75" rubber weather stripping
- 2025 and Later option adds: (1) custom vacuum fitting, (1) 3/8" push fitting, (1) 6" length of 3/8" vacuum line, (1) 3/8" O-ring
TECH RESOURCES
Additional Parts Required
- Required for 2025 and later models: drill a 3/8" hole in the lower airbox for the vacuum fitting (fitting, push connector, 3/8" line and O-ring are included with the 2025 and Later option)
- Optional: BMS replacement 1123 inverted cone filters (blue oiled, red oiled or dry) for service
- Optional: performance air filter cleaning & oil kit for oiled filters
Installation
- BMS Competition Intake Installation Guide (PDF)
- BMS Competition Intake Install Video (B58 version shown) (YouTube)
VEHICLE APPLICATIONS
Select the model-year option that matches your car; 2025 and later models require the included vacuum fitting kit. 218i owners: contact us with a photo of your engine bay to confirm fitment.
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | 220i | G42 / G43 | B46/B48 2.0L Turbo I4 | 2022+ |
| BMW | 220i xDrive | G42 / G43 | B46/B48 2.0L Turbo I4 | 2022+ |
| BMW | 230i | G42 / G43 | B46/B48 2.0L Turbo I4 | 2022+ |
| BMW | 230i xDrive | G42 / G43 | B46/B48 2.0L Turbo I4 | 2022+ |
| BMW | 320i | G20 / G21 | B46/B48 2.0L Turbo I4 | 2019+ |
| BMW | 320i xDrive | G20 / G21 | B46/B48 2.0L Turbo I4 | 2019+ |
| BMW | 330i | G20 / G21 / G28 | B46/B48 2.0L Turbo I4 | 2019+ |
| BMW | 330i xDrive | G20 / G21 / G28 | B46/B48 2.0L Turbo I4 | 2019+ |
| BMW | 330e | G20 / G21 | B48 2.0L Turbo I4 Plug-in Hybrid | 2019+ |
| BMW | 330e xDrive | G20 / G21 | B48 2.0L Turbo I4 Plug-in Hybrid | 2019+ |
| BMW | 420i | G22 / G23 | B46/B48 2.0L Turbo I4 | 2021+ |
| BMW | 430i | G22 / G23 | B46/B48 2.0L Turbo I4 | 2021+ |
| BMW | 430i xDrive | G22 / G23 | B46/B48 2.0L Turbo I4 | 2021+ |
| BMW | 420i Gran Coupe | G26 | B46/B48 2.0L Turbo I4 | 2021+ |
| BMW | 430i Gran Coupe | G26 | B46/B48 2.0L Turbo I4 | 2021+ |
| BMW | 430i xDrive Gran Coupe | G26 | B46/B48 2.0L Turbo I4 | 2021+ |







