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 |  SKU: 296349

JE Forged Racing Pistons Set of 4 99.75mm

Subaru WRX/STI/FXT/LGT (EJ257 w/EJ20 Heads)
$1,829.95
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IMPORTANT : SPECIAL NOTES APPLY TO VEHICLE FITMENT FOR THIS PRODUCT, CLICK HERE TO VIEW

Description

JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports. With a legacy of wins in rally, drag, road racing, and more, Subaru’s rich motorsports history, and sky-high power potential requires a robust and precision piston to get the job done.

JE’s Subaru pistons utilize thickened ring lands to support higher boost, and include a plethora of other performance features. They are available in multiple compression ratios, styles, and take into account popular crankshaft strokes for those looking to increase displacement. All piston sets include carbon steel wrist pins, premium carbon steel gas nitrided pistons rings, and locks.

Technical Specifications

Bore Diameter 99.75
Compression Height 1.209
Piston Head Type Dish
Piston Volume -26.00
Compression Ratio 8.50:1
Cylinder Head EJ257 STI
Piston Pin Outside Diameter 0.905
Piston Pin Length 2.250
Piston Pin Material 5115
Ringset Included Yes
Top Compression Ring Thickness 0.0480
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.0995
Piston Material 2618
Forging Type FSR
Pin Wall Thickness 0.180
Product Market Sport Compact
Product Types Engine Piston Kit
Prop 65 Yes/No Yes

Fitment Table

Fitment Notes

General Notes:

  • Suits built/hybrid engine applications only (EJ257 with EJ20 heads). Not compatible with standard EJ205, EJ207, EJ255 and EJ257 engines.