Wiseco

Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.75 Piston Shelf Stock Kit - K598M9975AP

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SKU:
WISK598M9975AP
UPC:
00193564076588
MPN:
K598M9975AP
Availability:
Regularly stocked product
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$815.99
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Description

How do Wiseco forged pistons enhance engine power?
Wiseco forged pistons achieve superior engine sealing, delivering maximum power output and efficiency for demanding race conditions.

Are Wiseco forged pistons suitable for drag racing?
Engineered for high stress with a score of 9, Wiseco forged pistons deliver extreme durability for demanding drag racing applications.

Wiseco Piston Sets - Forged - 4cyl deliver ultimate race-winning power and reliability, scoring a perfect 10 for Racing Competition. Crafted with Professional Series forged racing pistons and premium rings, these sets provide extreme durability and superior engine sealing. Experience confidence in your build with advanced pistons engineered for peak performance.

What Owners Say

Owners and enthusiasts consistently praise Wiseco piston sets for delivering high quality at a competitive price point, with many noting they offer better value compared to premium alternatives while maintaining the performance standards Wiseco is known for. The pistons themselves earn strong marks for reliability and build quality, though some users caution that Wiseco cranks have experienced failures and should be avoided. Enthusiasts appreciate the modest but real horsepower gains from higher compression options, typically adding a few extra ponies to their builds. A few builders mention that replacement oil rings can be tricky to source and differ from OEM specifications. Overall, Wiseco piston sets have earned a solid reputation as a dependable, budget-conscious choice for serious engine builds.

Key Features

  • Professional Series forged racing pistons
  • premium rings
  • Precision ring grooves
  • anti-detonation groove
  • additional ring seal improving features
  • ArmorGlide Skirt Coating

Why Choose the WIS Piston Sets - 4 Cyl

Delivers extreme durability and power for demanding race conditions.

Achieves superior engine sealing for maximum power output and efficiency.

Provides enhanced lubrication to reduce friction and extend engine life.

Transforms engine reliability under extreme stress for consistent performance.

Who Is This For?

Racing Competition — 10/10
Engineered for ultimate race-winning power and reliability.

Drag Racing — 9/10
Forged construction and anti-detonation groove for high stress.

Track / Autocross — 9/10
Designed for high performance and reliability under stress.

Engine Performance — 10/10
Professional Series forged racing pistons for ultimate power.

Street Performance — 7/10
Forged construction offers enhanced durability for performance.

Frequently Asked Questions

How do Wiseco forged pistons enhance engine power?

Forged racing pistons deliver ultimate race-winning power for demanding conditions. Their advanced design, scoring a 10/10 for Engine Performance, achieves superior engine sealing for maximum output. Trust these pistons to transform your engine for consistent, high-performance results.

Are Wiseco forged pistons suitable for drag racing?

Wiseco forged pistons are engineered for the extreme stresses of drag racing. The forged construction and anti-detonation groove contribute to a score of 9/10 for Drag Racing usage. Confirm fitment with your vehicle for peak performance and reliability.

What is the recommended installation procedure for Wiseco 4-cylinder pistons?

Professional installation is recommended for Wiseco 4-cylinder forged pistons. Confirm compatibility with your specific vehicle and consult a qualified technician for proper fitting. This ensures optimal performance and engine longevity.

Is upgrading from OEM pistons to Wiseco forged pistons beneficial for performance vehicles?

Upgrading to Wiseco forged pistons delivers extreme durability and power for demanding race conditions. Their professional series construction provides enhanced lubrication and superior sealing, offering a significant performance advantage over stock components. Confirm fitment with your vehicle to maximize this benefit.

Additional Resources

Official Wiseco Product Page

Installation Guide (PDF)

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
K598M9975AP
Proposition 65:
Y
Case Lot Quantity:
1
Category:
Engine Components>Piston Sets - Forged - 4cyl
Universal Fitment:
Y
Product Level:
Race Only
Racing Competition:
10/10
Drag Racing:
9/10
Track / Autocross:
9/10
Engine Performance:
10/10
Street Performance:
7/10
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