SUB EJ257 83mm STR 99.5mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99

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Details

SKU: 291063
Manufacturer: JE PISTONS

Description

California Prop 65 Warning: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
Type: Piston Set

California Restricted

California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (www.arb.ca.gov).

If an item is designated as "Competition and Racing Vehicles Only", we will require a race waiver be digitally signed before an item can ship to California. If an item is to be exported from California, an export waiver is available as well. This is a REQUIRED guarantee from you that a restricted item will NOT be used on any public highway in California; only on private race tracks in racing or competition use.

The JE Pistons Subaru EJ257 Stroker Piston Kit is a high-performance set of four forged pistons designed for durability and optimized performance. Manufactured from strong 2618 aluminum, these pistons are engineered specifically for the EJ257 engine with a 99.5mm bore and an 8.5:1 compression ratio. The proprietary Forged Side Relief (FSR) design minimizes friction and reduces power loss while saving weight with a shorter wrist pin. A specialized skirt coating helps lower friction and wear, improving longevity and reducing operating noise. Some applications may also include an accumulator groove to enhance ring seal and reduce ring flutter. This kit includes premium JE Pro Seal piston rings, high-quality wrist pins, and locks. JE Pistons applies decades of racing experience to deliver reliable, competition-proven performance, making these pistons an excellent choice for high-demand applications.