JE forged piston set for the Subaru STI EJ257. 99.5mm bore, 9.5:1 compression. Forged from 2618 aluminum in the USA with a Forged Side Relief (FSR) design to cut friction and weight; includes wrist pins, locks and JE Pro Seal premium rings. Set of 4.
| Type | Forged piston set |
| Engine | Subaru EJ257 (STI) |
| Bore | 99.5mm |
| Compression | 9.5:1 |
| Material | 2618 forged aluminum |
| Includes | Pins, locks, JE Pro Seal rings |
| Quantity | Set of 4 |
| Part Number | 310936 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
