Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.5 Piston Shelf Stock Kit

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in your Subaru EJ257 engine. The -19cc dish design is specific to the 4-valve heads and the 99.5mm bore size is a common upgrade for those looking to increase displacement for more power. These are not your average replacement pistons; they are designed for heavy to severe duty race applications where durability and strength are paramount.

Wiseco machines these pistons in the USA, paying close attention to details like precision ring grooves, anti-detonation grooves, and features that improve ring seal. They also include a unique ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and even makes operation quieter, all contributing to a longer-lasting, more efficient piston. The fully machined crown and forced pin oiling further enhance their ability to handle the extreme conditions found in racing.

This kit includes four pistons, ready to be installed in your EJ257 engine. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance Subaru and need pistons that can handle the stress of racing, this Wiseco set is a solid option.