JE forged piston set for the BMW S52B32 (USA-spec) 3.2L inline-six in the 1996-1999 E36 M3. 86.5mm bore (+0.1mm oversize) with a 9.0:1 compression ratio for forced-induction builds. Forged from 2618-T6 aluminum in the USA with JE's asymmetrical Forged Side Relief (FSR) design; set of 6 includes wrist pins, locks, and JE Pro Seal premium rings.
| Engine | BMW S52B32US 3.2L (E36 M3) |
| Bore | 86.5mm (+0.1mm oversize) |
| Compression Ratio | 9.0:1 |
| Material | Forged 2618-T6 aluminum (FSR) |
| Quantity | Set of 6 (with pins, locks & Pro Seal rings) |
| Part Number | 297170 |
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