-7%
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings
Click to zoom in

Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings

MAN620010C-4
807298067919
Piston Sets - Forged - 4cyl
4 Units In Stock - Ships Next Business Day
$ 805.63 $ 741.18
$ 741.18

SKU: 620010C-4 | UPC: 807298067919

Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings for 2002-2005 Impreza WRX and 2005 Saab 9-2X Aero

Upgrade your EJ205 engine with Manley Platinum Series stroker pistons featuring 93mm bore and 79mm stroke for increased displacement in 2002-2005 Subaru Impreza WRX and 2005 Saab 9-2X Aero. These forged pistons deliver reliable power handling under high boost with included premium rings for tight sealing. Engine builders choose this set for its precise engineering and long-term durability in performance applications.

Key Features

  • 2618 T6 Alloy Forgings: High-strength material handles extreme cylinder pressures and temperatures in turbocharged EJ205 builds
  • Proven Skirt Profiles: Optimized cam and barrel shapes reduce friction, noise, and wear for smoother operation
  • Tool Steel Wrist Pins: 9310 H13 pins with wire locks ensure secure retention under high-RPM stress
  • Moly Skirt Coating: Applied to select surfaces to prevent scuffing, galling, and cold-start damage
  • Included Rings: Precision-ground moly top ring, nitrile second ring, and flex-vent cast iron oil ring for maximum compression and oil control

Product Notes

  • Compression height 30.03mm, pin diameter 22mm, ring sizes 1.2mm/1.5mm/2.0mm
  • Requires cylinder boring/honing to 93.00-93.03mm and 79mm stroker crankshaft
  • Set of 4 pistons, each weighing 373g ±3g

Installation Notes

  • Professional installation recommended.
  • Bore cylinders to 93mm, balance rotating assembly, and verify 8.5:1 compression ratio with head gasket choice
  • Compatible with stock or aftermarket connecting rods with 22mm pin

This Part Fits

Year Make Model Submodel
2005 Saab 9-2X Aero
2002-2005 Subaru Impreza WRX

Why Choose Manley?

  • Engine builders and tuners depend on Manley for race-proven components
  • 2618 alloy construction withstands high-horsepower turbo setups
  • Exact tolerances and finishes ensure drop-in fit after machining

Frequently Asked Questions

  • Q: Will these pistons fit my 2004 Subaru WRX EJ205?
    A: Yes, designed for 2002-2005 Impreza WRX with EJ205 and 2005 Saab 9-2X Aero, requires 93mm bore preparation
  • Q: What alloy and coatings are used?
    A: Forged from 2618 T6 aluminum alloy with moly skirt coating and accumulator groove for boosted engines
  • Q: What is the warranty and install requirements?
    A: Manley offers defect warranty, professional installation advised with full rotating assembly balance

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure OEM box, 12 x 8 x 6 inches
  • Weight: 4.65 lbs

Request For Information

Have questions about Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Piston Set with Rings? Fill out the form below and we'll get back to you by the next business day.
Engine

Engine

Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...

View Engine Products
Manley Performance

Manley Performance

Manley Performance is a New Jersey-founded engine internals manufacturer stocked at Black Ops Auto Works, supplying forged pistons, connecting rods, valves, and crankshafts across domestic and import platforms. Shop Manley H-Beam and H-Tuff connecting rods, Race Master Series valves, forged crankshafts, and valve springs for Ford Modular and Coyote, Chrysler HEMI, Subaru EJ and FA, Nissan SR20 and 2JZ, Honda B and H-series, and Mitsubishi 4B11T and Mazda MZR platforms. Every product is filterable by year, make, model, and engine code so the correct part ships the first time. Black Ops Auto Works carries 270 Manley Performance SKUs across pistons, rotating assembly, and valvetrain components. About Manley Performance Founded in 1966 by Hank Manley as Manley Speed Equipment, Manley Performance has grown into one of the most established names in high-performance engine internals. From grassroots drag racing roots in New Jersey to a second manufacturing facility in Orange, Californi...

View Manley Performance Products
Piston Sets - Forged - 4cyl

Piston Sets - Forged - 4cyl

Forged 4-cylinder piston sets built for boosted street and race engines are stocked at Black Ops Auto Works. Shop forged piston sets from leading manufacturers sized for popular 4-cylinder turbo platforms, engineered to handle high boost, high compression, and repeated hard use without the failure risk of cast pistons. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct piston set ships the first time. Black Ops Auto Works carries 402 forged 4-cylinder piston set SKUs across bore size, compression ratio, and platform fitment. What This Category Covers The Piston Sets - Forged - 4cyl collection covers complete forged piston sets for inline-4 turbo and naturally aspirated engines, sized to specific bore diameters and offered in multiple compression ratios for street, drag, and road race builds. The catalog is strongest on Manley, Wiseco, and CP-Carrillo forged sets for common Honda, Subaru, Mitsubishi, and Mazda 4-cylinder turbo platforms....

View Piston Sets - Forged - 4cyl Products
Pistons

Pistons

Pistons and piston components for engine builds and rebuilds are stocked at Black Ops Auto Works. Shop forged and cast piston sets, piston rings, piston pins, and pin locks for 4, 5, 6, and 8-cylinder gas engines and diesel applications, including Cummins 5.9L 12-valve, Toyota 2JZGTE, Honda K20, BMW and Toyota B58, GM 6.2L LT1 and L86, Chrysler Gen3 Hemi 6.2L Hellcat and 6.4L Apache, and Nissan VQ35DE builds. Every product is filterable by bore size, engine platform, compression ratio, and application so the correct piston set ships the first time. Black Ops Auto Works carries 997 piston and piston component SKUs across forged, cast, and diesel-specific categories. What This Category Covers Pistons are the core moving component of any engine build, transferring combustion force into rotational power through the connecting rod and crankshaft. This category covers complete piston sets plus the individual components, rings, pins, and pin locks, needed for a full rebuild or performa...

View Pistons Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×