What material are these pistons made from and why is it important?

These pistons are forged from 2618 aluminum. This material is chosen for its improved tensile strength, making the pistons well-built and durable enough to withstand the high stresses found in severe duty race applications.

What is the ArmorGlide skirt coating and what does it do?

The ArmorGlide skirt coating is applied to reduce friction and noise during operation. It also helps to resist seizure, contributing to the overall durability and longevity of the piston in demanding conditions.

Are these pistons compatible with all Audi S4 models from 1992-1994?

This piston set is specifically designed for the Audi S4 models from 1992 through 1994, and also fits the 1995 Audi S6. It's always recommended to verify fitment with your vehicle's specific engine code and configuration.

1992-1994 Audi S4 Forged Pistons | Wiseco KE222M815

Name: Wiseco Audi ADU 2.2L 20V 81.50mm Bore 32.80mm CH -21.00 CC 0.787in Pin Pistons - Set of 6
Brand: Wiseco
SKU: wiseco-wiseco-audi-adu-2-2l-20v-81-50mm-bore-32-80mm-ch-21-00-cc-0-787in-pin-pis-t14-630444
Price: 874.99 USD
Availability: InStock

Wiseco Audi ADU 2.2L 20V 81.50mm Bore 32.80mm CH -21.00 CC 0.787in Pin Pistons - Set of 6

$874.99

Only 1 left in stock

Fits 1992-1994 Audi S4. Wiseco forged piston set for severe duty race builds, improving tensile strength and durability.

Key Features

Fits 1992-1994 Audi S4 and 1995 Audi S6.
Set of 6 forged pistons, each with an 81.50mm bore.
Constructed from 2618 aluminum for improved tensile strength.
Features precision ring grooves, anti-detonation grooves, and improved ring seal features.
ArmorGlide skirt coating reduces friction and noise, and resists seizure.
Fully machined crown and forced pin oiling for enhanced performance.

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Product Details

If you're rebuilding the engine in your 1992-1994 Audi S4 for serious performance, these forged pistons from Wiseco are a solid choice. They're built for heavy to severe duty race applications, meaning they can handle the kind of stress that comes with pushing your engine hard. Wiseco makes these pistons from 2618 aluminum, which is known for its improved tensile strength, making them well-built for demanding use.

Wiseco puts a lot of attention into the details with these pistons. You'll find precision ring grooves, anti-detonation grooves, and features designed to improve ring seal, all contributing to better performance and durability. They also come with an ArmorGlide skirt coating that helps reduce friction and noise, while also resisting seizure. The fully machined crown and forced pin oiling are further touches that show these are made for serious builds. This set includes six pistons, ready to be installed in your ADU 2.2L 20V engine.

When you're building an engine for racing, every component needs to be up to the task. These Wiseco pistons are designed and machined in the USA, ensuring a high level of manufacturing. Remember 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.