Product Description
BMW S55 Piston Set - ItalianRP IRPP506DA
The ItalianRP pistons are engineered for BMW's S55B30 3.0L inline-six engine, found in high-performance models like the M2, M3, and M4. These pistons are available in three variants—Silver, Gold, and Platinum—each tailored to different performance needs. The Silver line is crafted from 4032 aluminum, ideal for street applications; the Gold line utilizes forged 2618 aluminum for enhanced strength; and the Platinum line, also forged from 2618 aluminum, features a double bridge design for superior durability and performance. These pistons come in two different compression ratios of 10.20:1 and 9.50:1, as well as in 84.00mm and 84.50mm size in bore.
| Features | Specifications |
|---|---|
| Piston Code | IRPP506DA |
| Rod Code | IRPR504 |
| Engine Code | S55 |
| Number of Cylinders | 6 |
| Stroke | OEM |
| Compression Ratios | 9.50:1, and 10.20:1 |
| Compression Height | OEM |
| Bore Size | 84.00 and 84.50 mm |
| Compatible Models | F87 M2 Competition, F80 M3, F82 M4 and F83 M4 |
| Included Components | Pistons, Rings, Wrist Pins |
| Material | 2618 Aluminum Alloy |
| Manufacturing Origin | Italy |
ItalianRP is a performance engine component manufacturer based in Italy, specializing in high-quality forged pistons and connecting rods for European and Japanese engines. Known for their motorsport heritage and precision craftsmanship, ItalianRP parts are designed and built in-house using top-grade materials like 2618 aluminum and 4340 steel. Every component undergoes rigorous quality control and is CNC-machined to exacting tolerances, ensuring reliable performance in everything from street builds to full race applications. With a growing presence in North America through ItalianRP USA, the brand brings together Italian engineering excellence and a passion for pushing automotive limits.
