Product Overview
ITG ProFilter HMP-954 – BMW M135i F40 (2019 onwards) and Mini JCW GP3 F56 (2020 onwards)
The ITG ProFilter HMP-954 replaces the paper element in the factory air box of two hot hatches that share the 2.0-litre B48A20E turbo engine: the BMW M135i xDrive F40 (302 bhp, from 09/2019) and the Mini John Cooper Works GP3 F56 (306 bhp, from 2020). It is hand-made in Britain from ITG’s multi-layer reticulated foam.
Why fit one?
Turbocharged engines are sensitive to intake restriction, and a foam element holds dirt through its depth so it keeps flowing well between cleans. Because it sits inside the standard air box, intake air is still drawn from the factory location and the sensors stay where BMW put them. It is a good first step for owners who want a reusable filter without changing the whole intake.
- Five-sided shape to suit the B48 air box
- Multi-layer reticulated foam
- Washable and reusable
- Hand-made in the UK
Specifications
HMP-954 measures 288 x 225 mm and has five sides to match the OE element. See the application list on the ITG HMP-954 page for the BMW M135i F40.
Fitting and care
Open the air box, remove the old element and clean out the housing. Seat the ProFilter so all five edges sit evenly in the seal channel, then close the lid. Keep the foam oiled and wash it with ITG cleaner when it becomes dirty. ITG lists the Mini fitment specifically for the JCW GP3, so owners of other F56 Cooper S or JCW models should compare their existing element before ordering. If you want a complete intake upgrade for the M135i instead, see the related induction kit below.
