SKU: 17428215319

JE Pistons Subaru EJ25 Ultra Series 100mm Bore Dia -17.3cc 8.5:1 0.905in Pin - Piston Set

Sale price$506.25 Regular price$562.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

JE Pistons Subaru EJ25 Ultra Series 100mm Bore Dia -17.3cc 8.5:1 0.905in Pin - Piston SetUltra Series forged pistons from JE are the industry? s strongest, most fully featured pistons available off the shelf. Offered for a wide range of import and sport compact applications from 2JZ to 4G63 and Audi to BMW, Ultra Series pistons feature JE? s proprietary Aligned Grain Flow forging technology providing next level tensile strength ideal for the extreme cylinder pressures of power adder engine builds. Equipped with custom level features

Ultra Series forged pistons from JE are the industry?s strongest, most fully featured pistons available off the shelf. Offered for a wide range of import and sport compact applications from 2JZ to 4G63 and Audi to BMW, Ultra Series pistons feature JE?s proprietary Aligned Grain Flow forging technology providing next-level tensile strength ideal for the extreme cylinder pressures of power adder engine builds. Equipped with custom level features including thermal barrier crown coating, skirt coating, gas ports, and more, Ultra Series are the ideal pistons for your high-boost build. As with all JE Pistons products, Ultra Series pistons are made 100% in the USA.

  • Aligned Grain Flow Technology: Exclusively available on JE Ultra Series, this proprietary, in-house forging process maximizes tensile strength to withstand the stresses of high-performance engine environments
  • Thermal Barrier Crown Coating: This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging
  • High-Strength Wrist Pins: Premium thick-wall wrist pins are manufactured by Trend Performance in the USA and are designed for the demands of high-performance/power-adder builds
  • Skirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise, especially on cold start
  • Optimized Pin Oiling: Enhanced pin oiling features keep pin, pin bores, and small-end lubricated for reduced heat, friction, and wear
  • Lateral Gas Ports: Help maintain power-producing ring seal at the top compression ring, even in high RPM and high boost situations
  • Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing engines
  • Made 100% in the USA
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17428215319

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Jessica Beasley
Whiting, US
★★★★★ 4
Prom
Suit was a little too big, so had to have it taken in, other than that, it is perfect
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Reviewed in the United States on October 20, 2025
E
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Eugene
Draper, US
★★★★★ 2
Small and Stiff, that’s what she said!
Refunded… this thing is cut small, has a short crotch area, like women’s pants and the material although nice is stiff with no give at all… gotta be a skinny dude to wear this one. I suggest a size or 2 up
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Reviewed in the United States on January 15, 2026
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jancie brown
Draper, US
★★★★★ 5
Well made
Very well made. Fit 5'5 130lb preteen perfectly for a sneaker ball. The material is thick so keep that in mind if purchasing during a hot month.
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Reviewed in the United States on May 26, 2024
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Jaylene
San Leandro, US
★★★★★ 5
Perfecto
Muy bonito 😊
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Reviewed in the United States on June 4, 2024
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Heilee matlock
Massapequa, US
★★★★★ 1
Do not biy
Unfortunately this material is a great example of getting what you pay for. The fit is off and the material makes it so tacky.
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Reviewed in the United States on March 6, 2025

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