What is the advantage of billet steel camshafts?

Billet steel camshafts are machined from a solid piece of steel, allowing for precise lobe profiles and tighter tolerances. This construction method ensures greater strength and durability compared to cast camshafts, especially under high-performance conditions.

What other modifications are recommended when installing these camshafts?

Since these camshafts are designed for use with turbo upgrades, it's recommended to pair them with a suitable engine tune to optimize fuel delivery and ignition timing. Ensuring your fuel system can support increased demand is also important for achieving optimal performance.

Are these camshafts compatible with stock turbochargers?

No, these S2 camshafts are specifically designed for use with upgraded or modified turbocharger systems. Their more aggressive duration and lift profile are intended to take advantage of increased airflow from larger turbos.

GSC P-D BMW B58 Gen 1 S2 Camshafts 284/288 Billet 7092S2

Name: GSC P-D BMW B58 Gen 1 S2 Camshafts 284/288 Billet (Use w/Turbo Upgrade)
Brand: GSC Power Division
SKU: gsc-power-division-gsc-p-d-bmw-b58-gen-1-s2-camshafts-284-288-billet-use-w-turbo-t14-837274
Price: 1290.24 USD
Availability: BackOrder

GSC P-D BMW B58 Gen 1 S2 Camshafts 284/288 Billet (Use w/Turbo Upgrade)

$1290.24

On Backorder — Expected to ship by May 17, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

GSC P-D BMW B58 Gen 1 S2 Camshafts 284/288 Billet (Use w/Turbo Upgrade)

Key Features

Fits BMW B58 Gen 1 engines when used with turbo upgrades.
Features 284 degrees of intake duration and 288 degrees of exhaust duration.
CNC ground from solid billet steel for strength and precision.
Designed for improved airflow with modified turbocharger systems.
Not CARB approved; cannot ship to California.

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Product Details

Starting with a 284-degree intake and 288-degree exhaust duration, these GSC Power Division S2 camshafts are specifically designed for BMW B58 Gen 1 engines that are being upgraded with a larger turbocharger. The camshafts are CNC ground from solid billet steel, which offers a strong foundation for precise lobe profiles and ensures durability under demanding conditions. This updated profile is intended to work with modified turbo systems, allowing for increased airflow and improved performance when paired with other supporting modifications.

The S2 camshafts feature a more aggressive lift and duration compared to stock, which helps the engine breathe more freely at higher RPMs. This is crucial when you're pushing more boost from an upgraded turbo. The billet construction means these camshafts are made from a solid piece of steel, which is then machined to shape. This process allows for tighter tolerances and a more consistent profile across the entire camshaft, ensuring reliable performance and longevity. They are designed to be a direct replacement for your factory camshafts, though installation will require the engine to be disassembled to the point of accessing the camshafts.

When installing these camshafts, it's important to ensure all other components in the valvetrain are in good condition. Given that these are intended for use with turbo upgrades, you'll also want to make sure your fuel system and engine management are tuned to take full advantage of the increased airflow. This camshaft set is not CARB approved and cannot be shipped to California.