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Honda Civic 1.8L R18A Performance Forged Piston Kit 81mm 2006–2012
Upgrade your R18A1 with this forged performance piston kit, built to 81.00mm for tuners who want more strength and a wider power band than stock pistons can handle.
Key Features
- Forged aluminum construction resists detonation and heat far better than a cast OEM piston
- Stronger crown and skirt design for tuned, boosted, or high-RPM naturally-aspirated builds
- Precision-machined ring lands for consistent sealing under sustained high load
Vehicle Fitment
- Honda Civic 1.8L (2006–2012)
Not 100% sure this is the right kit for your engine? Send us your engine or chassis number before ordering and we'll confirm fitment.
Technical Specifications
| Bore Size | 81.00mm |
| Material | 4032 Forged Aluminum |
| SKU | HD-R18-F81 |
Shipping & Support (New Zealand)
Dispatched from our NZ-based sourcing team, with nationwide shipping and support available if you need help matching this kit to your build.
Note: Bore size should be confirmed against your block's actual measured bore before ordering. Professional installation and machining/measurement by a qualified engine builder is recommended.