Mahle 930020322 Forged Piston Set (4) 92mm Bore for Subaru EJ20/EJ207 2.0L

Vehicle Fitment

• 1993-2000 Subaru Impreza WRX (GC8, EJ20 turbo, AWD)
• 1994-2000 Subaru Impreza WRX STI (GC8, EJ20 turbo, AWD)
• 2001-2005 Subaru Impreza WRX Sedan (GD, EJ205 2.0L Turbo, AWD)
• 2002-2005 Subaru Impreza WRX Wagon (GG, EJ205 2.0L Turbo, AWD)
• 2005 Saab 9-2X Aero (EJ205 2.0L Turbo, AWD)

Fitment Notes

• For Subaru EJ20/EJ205/EJ207 2.0L turbo engines with 92.00 mm bore.
• Verify crank stroke (75 mm) and 23 mm pin before install.
• For performance/turbo builds; check piston-to-wall clearance.
• Not for EJ255/EJ257 2.5L engines.

Features

• Forged aluminum construction for boosted use.
• 92.00 mm bore sized for EJ20 blocks.
• Dish crown to keep compression safe on turbo cars.
• CNC-machined for accurate pin and skirt sizing.
• Skirt coating to cut friction and scuffing.
• Matched rings, pins, and locks included.
• Lightweight design to support high RPM.
• Built for street, track, or rally EJ builds.

Specifications

• Bore Diameter: 92.00 mm
• Engine Family: Subaru EJ20/EJ205/EJ207 2.0L Turbo
• Pin Diameter: 23 mm
• Stroke Compatibility: 75 mm
• Crown Volume: approx. -12 cc (dish)
• Material: Forged aluminum alloy
• Quantity: Set of 4 pistons
• Application: AWD turbo Subaru platforms listed above

Included Components

• 1x Set of four Mahle 930020322 forged pistons
• 4x Piston ring sets
• 4x Wrist pins (23 mm)
• 4x Pin locks/retainers
• 1x Installation/clearance instruction sheet

Product Description

The Mahle 930020322 forged piston set is designed for Subaru EJ-series 2.0L turbo engines commonly found in GC8 and early GD/GG WRX platforms. With a 92.00 mm bore and dish-style crown, these pistons support turbocharged setups while helping manage compression for reliable power. The forged construction and coated skirts make them well-suited for builds that will see higher boost, higher RPM, or endurance-style use.

Each kit arrives as a matched set of four with rings, pins, and locks to streamline a rebuild or performance upgrade. When used with the correct EJ20/EJ205/EJ207 block, 75 mm stroke, and 23 mm pin rods, this set provides a durable foundation for street, track, or rally WRX builds. Always measure and set clearances to engine builder specs before final assembly.