aFe stage 2 Magnum Force cold air intake kit for F22 M240i, F30 340i, F32 440i. This kit uses custom free-flowing filter placed in a revised airbox cover with a new, optimized intake chargepipe. Select a filter type and a cover style from the menu above.
- 9hp gain
- 10ft-lbs gain
- Improved engine sound
- Free-flowing filter with dust-retention oil
- Easy install
The filter size and shape have been custom-designed just for these models to maximize the available surface area and permit more air into the engine. The stage 2 kits packs all of the filter technology of more expensive kits but in a more basic and straight-forward (budget friendly) package. Without a top cover the exposed air filter will drastically change the intake sound (for the better!) even with the heat shield. The Pro 5R filter is an oiled-cotton gauze filter media - the 5-layer filter flows a lot better than a paper filter while a small coating of retention oil traps dirt, dust, and debris. The Pro 5R filter is washable and reusable and only needs occasional cleaning and re-oiling from an aFe service kit.
The Pro Dry S synthetic filter material is denser than the aFe Pro 5R so it does not require any dust-retention oil, yet it flows up to 66% more air than a conventional stock paper filter. The Pro Dry S gives you a modest power increase with excellent filtration (99.2% efficiency) but less maintenance than the oiled filter. The Pro Dry S is cleaned using an aFe service kit and regular tap water.
Emissions Notice: This product was developed, and intended to be used, on vehicles that retained all emissions controls. As a direct replacement upgrade it has not been designed to trick or disable any emissions controls. It is designed to work with all other factory emissions controls in place. However, it may not have been evaluated nor tested for emissions compliance and is not legal for installation or use in California on any pollution controlled motor vehicle or in any state, province, or jurisdiction governed by, or which has adopted, CARB regulations for aftermarket parts. Some suppliers will not ship to certain states, requiring extra delivery time. We will advise you of any delays.
BMW Fitments: 2 SeriesF22 / F23 (2014-2021) > M240i
F22 / F23 (2014-2021) > M240i xDrive
3 SeriesF30 / F31 / F34 (2012-2019) > 340i
F30 / F31 / F34 (2012-2019) > 340i xDrive
4 SeriesF32 / F33 / F36 (14-20) > 440i
F32 / F33 / F36 (14-20) > 440i xDrive
