Dorch Engineering +40% Lift Kit Exhaust Camshaft - BMW F20 M140i | F22 M240i | F30 340i | F32 440i (B58 Gen1)

Following its record-setting S55 and N55 Lift Kits, Dorch Engineering's Gen1 B58 Lift Kit is a billet OEM-spec exhaust camshaft with a custom high lift fuel pump lobe. Installed with a Dorch HPFP, it gives 40% more fuelling capacity beyond the pump's existing flow.

Because the valve profile is OEM spec, there is no need for upgraded valve springs. Being billet machined, it is a brand-new camshaft rather than a compromised regrind of the stock part.

Please note:

• Only compatible with a Dorch HPFP – not for use with the OE pump. Software for the Dorch pump is required (no additional special tuning is needed for the camshaft itself).
• Gen1 B58 engines use two camshaft versions depending on build date (08/2017 cut-off), designated Gen1 and Gen1.5 – please select the correct version. If you are unsure, contact us with your VIN before ordering.
• Towards the upper limits of the DS25 the B58 fuel system becomes limited by the injectors – higher flowing injectors are needed to see the full benefit.
• Only suitable for Gen1 B58 vehicles up to the 2019 model year – not compatible with 2020-on B58 vehicles.

Features

• Billet machined OEM-spec exhaust camshaft
• Custom high lift fuel pump lobe for +40% fuelling capacity
• DS25 with this camshaft: up to 1000whp on petrol / 770whp on E85
• No upgraded valve springs required
• Available for Gen1 and Gen1.5 B58 engines

Fitment

• BMW F20 / F21 M140i (inc. xDrive)
• BMW F22 / F23 M240i (inc. xDrive)
• BMW F30 / F31 / F34 340i (inc. xDrive)
• BMW F32 / F33 / F36 440i (inc. xDrive)
• BMW G30 / G31 540i (inc. xDrive) *
• BMW G32 640i GT (inc. xDrive) *
• BMW G11 / G12 740i (inc. xDrive) *
• BMW G01 X3 M40i *
• BMW G02 X4 M40i *
• * Up to 2019 model year (Gen1 B58) only. Not compatible with 2020-on / Gen2 B58 vehicles.