The Tomei Forged Piston Set 4B11 Evo X 86.5 CH27.4 (TA202A-MT02B) is built for Evo X owners pushing higher boost and power where OEM pistons become a liability. Tomei’s forged design improves strength under high heat and cylinder pressure while supporting the kind of tuning and sustained load that track-driven or big-turbo cars demand.
This is a solid internal upgrade path for anyone building a stronger bottom end before increasing boost, RPM, or turbo size.
Key Features
- Application: Mitsubishi 4B11 (Evo X)
- Bore: 86.5mm
- Compression height: 27.4mm (2.3)
- Piston material: A4032
- Designed for boosted performance and high thermal load
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