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

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

6598M995

Out of stock

$182.41 USD
$201.99 USD $182.41 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc piston is a high-performance forged racing piston designed for serious motorsport applications. Part of Wiseco's Professional Series, this piston features a no-expense-spared construction aimed at maximizing durability and performance in demanding race environments. Crafted from premium materials, it offers enhanced strength and reliability, making it suitable for heavy-duty and severe-duty race builds. The piston includes custom-level features and is supplied with high-quality rings to ensure optimal sealing and performance. Its design helps remove power limits, enabling racers to achieve higher horsepower and torque outputs while maintaining engine integrity during intense operation.

This piston is specifically engineered for Subaru EJ257 engines found in WRX and STI models, compatible with 1999 and later years. It is intended for use in high-performance race or heavily modified street applications where durability and precision are critical. The dish design with a -19cc volume provides the necessary compression characteristics for tuned engines. Installation involves a direct replacement of stock pistons, fitting within the engine's bore and connecting to the stock or upgraded components. The kit includes the piston and rings, making it suitable for rebuilds or performance upgrades aimed at racing or high-performance street driving.

Overview

Wiseco Professional Series

Fits Subaru EJ257 WRX/STI 4v

Part #: 6598M995

Overview

The Wiseco Professional Series forged racing pistons are engineered for high-performance Subaru EJ257 engines, specifically tailored for WRX and STI models. Crafted with precision and built for serious racers and automotive enthusiasts, these pistons deliver exceptional durability and performance under demanding conditions. Designed to withstand severe duty race builds, they help optimize engine response, power delivery, and reliability, making them ideal for those seeking to push their vehicle’s limits on the track or in high-performance applications.

Key Features

Designed with advanced forging technology and high-quality materials, these pistons feature a -19cc dish to support specific compression ratios. They come with premium rings for a secure seal and consistent compression. The pistons are engineered to handle increased power and heat, providing enhanced durability during intense driving conditions. Their precise manufacturing ensures optimal fitment and performance consistency, supporting your engine’s efficiency and responsiveness.

Construction & Design

Constructed from forged aluminum alloy, these pistons are designed for maximum strength and lightweight performance. The dish volume of -19cc is carefully engineered to support specific compression ratios, aiding in power optimization. The pistons feature precision-machined skirts and top surfaces for smooth operation and reduced friction, contributing to overall engine longevity and performance.

Performance & Response

These Wiseco pistons are intended to support high-performance engine builds, helping improve throttle response and power output. Their robust construction ensures reliable operation under high RPM and boost conditions, making them suitable for racing and spirited driving. The design promotes efficient heat dissipation, reducing the risk of knocking and thermal stress.

Installation & Fitment

Designed for direct replacement in Subaru EJ257 engines, these pistons require professional installation and proper engine assembly techniques. Compatibility with WRX and STI models ensures a straightforward upgrade for enthusiasts and builders aiming to enhance their engine’s performance.
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