B58 GEN1 LIFT KIT-EXHAUST CAMSHAFT

Gen1 B58 +40% Lift Kit Exhaust Camshaft

Following years of record-setting success with our S55 and N55 Lift Kits, we’re excited to introduce the Gen1 B58 Lift Kit—a game-changing upgrade for the Gen1 B58 community. This kit features a billet-machined OEM-spec exhaust camshaft with a custom high-lift fuel lobe, engineered to boost fueling capacity without requiring upgraded valve springs or special tuning.

Why Choose This Camshaft?

• Billet machined, not a regrind—offering superior strength and precision

• OEM-spec cam profile ensures direct bolt-in compatibility and retains factory reliability

• Works seamlessly with your Dorch HPFP to deliver 40% more fueling capacity over HPFP alone

• Supports flow rates up to 1000whp on gasoline when combined with the DS25 HPFP

Performance Specs with DS25 HPFP:

Note: Maximum gains require upgraded high-flow injectors for optimal fueling.

Compatibility:

Compatible only with Dorch HPFP

• F20/F21 – 140i, 140xi

• F22/F23 – 240i, 240xi

• F30/F31/F34 – 340i, 340xi

• F32/F33/F36 – 440i, 440xi

• G30/G31 – 540i, 540xi*

• G32 – 640i, 640xi*

• G11/G12 – 740i, 740xi*

• G01 – X3 M40i*

• G02 – X4 M40i*

*Only compatible up to 2019 model year (Gen1). Not compatible with 2020+ Gen2 B58 vehicles.