SKU: 615000C-4 | UPC: 807298024301
Manley 98+ Subaru WRX (EJ205) STD Stroke 92mm STD Bore 8.5:1 Dish Piston Set with Rings
Manley Platinum Series pistons deliver forged strength for EJ205 engines in 2002-2005 Subaru Impreza WRX and 2005 Saab 9-2X Aero models. These 92mm bore STD stroke pistons with 8.5:1 dish compression ratio include rings for direct replacement in performance rebuilds. Engine builders choose them for consistent power handling and long-term reliability under boost.
Key Features
- 2618 T6 Alloy Forgings: High-silicon aluminum construction withstands extreme heat and detonation for boosted applications
- Proven Skirt Profiles: Optimized cam and barrel shapes reduce friction and wear while maintaining piston stability at high RPM
- Tool Steel Wrist Pins: 20mm x 1.94mm SP shot-peened 9310 pins with circlips ensure secure connection to rods
- Moly Skirt Coating: Reduces scuffing and galling for smoother break-in and quieter operation
- Included Rings: 1.2mm/1.5mm/2.8mm ring pack supports 8.5:1 compression with -16cc dish volume and 30mm compression height
Product Notes
- Each piston weighs 342 grams for balanced rotating assembly
- Requires standard EJ205 ring gap specs and honing to 92.02-92.04mm final bore
- Set of 4 pistons ships complete with pins and rings
Installation Notes
- Professional installation recommended.
- Verify rod and crank specs match STD 75mm stroke before assembly
- Compatible with OEM or aftermarket H-beam rods with 20mm pin bore
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005 | Saab | 9-2X | Aero |
| 2002-2005 | Subaru | Impreza | WRX |
Why Choose Manley?
- Trusted by pro tuners for EJ20/EJ25 engine programs worldwide
- Forged pistons built to handle 500+ whp with proper tuning
- Precision CNC machining ensures ring seal and dome integrity
Frequently Asked Questions
- Q: Will these pistons fit 2006+ WRX or STI engines?
A: Designed for EJ205 92mm bore STD stroke. STI EJ257 uses 99.5mm bore pistons like Manley 61502 series - Q: What material and coating do these have?
A: 2618 T6 aluminum forgings with moly skirt coating and hard anodized top ring groove for durability - Q: What warranty covers this set?
A: Manley offers 1-year unlimited mileage warranty against manufacturing defects with proper installation
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-packed box 11 x 11 x 2.7 inches
- Weight: 3.1 lbs
Reviews
There are no reviews yet.