Product Description
BMW S14 Piston Set - ItalianRP IRPP025D
The ItalianRP piston is a high-performance forged component designed for the BMW S14B23 2.5L 16-valve engine, specifically for the E30 M3 Sport Evolution (Sport Evo). Crafted from 2618 aluminum alloy, this piston features a double-bridge design, enhancing strength and durability under high-stress conditions. With bore sizes ranging from 95.28mm to 95.80mm and a compression ratio of 10.50:1, it maintains the OEM stroke and compression height, ensuring compatibility with stock components. The piston is paired with ItalianRP's IRPR020 connecting rods found here. This piston is also available in both Gold and Platinum lines, the piston offers options to suit various performance needs and budgets. This product is ideal for enthusiasts seeking to upgrade their engine's internals for improved performance and reliability. This piston is paired with ItalianRP connecting rod which can be found here.
| Features | Specifications |
|---|---|
| Piston Code | IRPP025D |
| Rod Code | IRPR020 |
| Engine Code | S14 |
| Number of Cylinders | 4 |
| Stroke | 87.00 |
| Compression Ratios | OEM |
| Compression Height | 25.00 |
| Bore Size | 95.28, 95.34, 95.44, 95.50, and 95.80 mm |
| Compatible Models | E30 M3 |
| 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.
