What is the compression ratio of these pistons?

These Mahle pistons are designed to achieve an 8.1:1 compression ratio. This is achieved through the piston's -16cc dish volume and its compatibility with specific stroke and rod lengths.

What material are these pistons made from?

The pistons are forged from 2618 aluminum, a material known for its strength and ability to withstand high temperatures and pressures commonly found in performance engine builds.

Can these pistons be shipped to California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle MS Subaru EJ20 Forged Piston Set 92.00mm Bore 92992812

Name: Mahle MS Subaru 2.2L EJ20 92.00mm Bore 79.0mm Stroke 130.5mm Rod 23mm Pin -16cc 8.1 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-subaru-2-2l-ej20-92-00mm-bore-79-0mm-stroke-130-5mm-rod-23mm-pin--t14-567231
Price: 749.22 USD
Availability: BackOrder

Mahle MS Subaru 2.2L EJ20 92.00mm Bore 79.0mm Stroke 130.5mm Rod 23mm Pin -16cc 8.1 CR Set of 4

$749.22

On Backorder

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

Mahle MS Subaru EJ20 forged piston set for 2.2L engines. 92.00mm bore, 8.1 CR.

Key Features

Set of four Mahle MS forged pistons for Subaru 2.2L EJ20 engines.
Features a 92.00mm bore size.
Designed for an 8.1:1 compression ratio with a -16cc dish volume.
Constructed from strong 2618 aluminum for durability.
Includes a 30.3mm compression height, 79.0mm stroke compatibility, and a 23mm wrist pin diameter.
Each piston weighs 340g.

This piston set is designed for Subaru 2.2L EJ20 engines. Please verify compatibility with your specific vehicle and engine build before purchase.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're rebuilding the engine in your Subaru with the 2.2L EJ20, getting the right pistons is crucial for performance and reliability. This set of four forged pistons from Mahle is built to handle the demands of a performance engine build. They feature a 92.00mm bore and are designed to achieve an 8.1:1 compression ratio, which is a solid choice for boosted applications where you need to control detonation.

Mahle uses 2618 aluminum for these pistons, a well-known material for its strength and durability under high temperatures and pressures. Each piston measures 30.3mm in compression height, uses a 79.0mm stroke, and is designed to work with a 130.5mm connecting rod and a 23mm wrist pin. The -16cc dish volume contributes to that 8.1 CR. At 340g each, they offer a good balance of strength and weight for a performance engine.

This set is intended for a performance engine build where the stock components are being replaced or upgraded. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.