The Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 93mm Piston Kit is a high-performance forged racing piston set designed for serious motorsport applications. Part of Wiseco's Professional Series, these pistons are engineered for maximum durability and custom-level performance in heavy to severe duty race builds. Constructed from forged materials and supplied with premium rings, they deliver enhanced strength, reliability, and power output. These pistons are optimized for high-stress environments, enabling racers and builders to push their engines to the limit without compromise.
Designed specifically for Subaru WRX models with a 4-valve engine, these 93mm pistons are suitable for engines with an 8.4:1 compression ratio. They serve as direct replacements or upgrades for stock components in race or performance builds. Ideal for track use, motorsport, or high-performance street applications, they provide a reliable solution for demanding engines. Installation involves standard bolt-on procedures, and the kit includes the pistons and rings necessary for a complete upgrade.
