Wiseco Subaru EJ25 DOHC 4v InvDme -23cc 99.5 Piston Shelf Stock Kit

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series.

Additional Information

Wiseco Subaru EJ25 Piston Set, 99.50 mm Bore, 30.25 mm Compression Height, 0.9055 in. Pin Diameter, Sport Compact, Set of 4.

Part Type

Engine Piston Set

• ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
• Designed and built to withstand heavy to severe duty performance applications
• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• Forced pin oiling
• Fully machined crown features
• Precision ring grooves, anti-detonation groove, and additional ring seal improving features

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Piston and Ring Kit, Forged, Dish, 3.917 in. Bore, Subaru, 4-Cylinder, Kit

Wiseco sport compact piston and ring kits give you stronger pistons and tighter tolerances than any other part in your engine, with less internal and external machining. Wiseco's advanced forging process and extensive heat-treating and finishing processes ensure the performance and reliability that you demand from your engine. These kits' crown thickness and ring lands are designed for power-adders like turbos and blowers and nitrous oxide. They come complete with high-quality piston rings. Whether you're on or off of the street, you can depend on the maximum strength and minimum variance of Wiseco's aluminum-forged pistons for your sport compact vehicle. Choose the kit recommended for your make and engine application.