This piston kit features PowerPak Plus forged piston assembly - Designed for the professional racer, these assemblies are ultra strong, light weight, low drag, round wire locks and ultra flat low drag metric rings with a number of race proven advancements. The PowerPak Plus was developedto bring the professional racer a custom level piston at a shelf stocked price.
- Bore size: 100.0mm
- Stroke size: 79.0mm
- Rod size: 130.4mm
- Compression height 30.7mm
- Pin diameter: 23m
- Crown volume: -2cc
- Weight: 39
- Compression ratio: @56cc/8.6
- Alloy composition: 4032
- Performance ring set: 1.2, 1.5, 2.8mm
To suit Subaru EJ25 2.5L STI DOHC Turbo engines
- Ultra Flat Ring Grooves - essential in achieving and maintaining the best seal possible.
- CNC Machined Pin Bores - ensures perfectly matched and aligned pin bores every time.
- Slipper Skirt Forging - Mahle Motorsport's technology for strong, light-weight and low drag forgings.