Dorch Engineering x Kelford Performance Camshafts - BMW F20 M140i | F22 M240i | F30 340i | F32 440i (B58 Gen1)

Developed in partnership between Dorch Engineering and Kelford Cams, these camshafts combine Kelford's record-breaking B58 cam profiles with Dorch's upgraded HPFP fuel lobe – giving you proven camshaft profiles plus a bonus 40% more direct-injection fuelling capacity.

The Stage 1 camshaft (270°/268°) suits Gen1 B58 engines with bolt-on intake, exhaust and turbo upgrades running a 58–68mm turbo, and retains full use of Valvetronic and dual VANOS for sharp throttle response and a wide power band.

Please note:

• These camshafts require upgraded valve springs – Kelford recommends KVS57-BT valve springs (not included).
• Gen1 B58 engines were produced in several revisions, designated Gen1 and Gen1.5 – please select the correct version. If you are unsure which engine your car has, contact us with your VIN before ordering.
• Camshaft upgrades should be installed alongside suitable tuning – please consult your tuner.
• Only suitable for Gen1 B58 engines.

Features

• Kelford performance camshaft profiles
• Dorch upgraded HPFP fuel lobe for +40% DI fuelling capacity
• Stage 1: 270°/268° duration, for engines with bolt-on upgrades and a 58–68mm turbo
• Retains full Valvetronic and dual VANOS operation
• Available in Stage 1 and Stage 2 profiles for Gen1 and Gen1.5 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 *
• Gen1 B58-equipped vehicles only (up to 2019 model year).