The ZRP stroker billet crankshaft for the Audi 2.5L RS3 / TTRS is crafted from exceptionally durable EN40B steel, designed to withstand the most extreme conditions. EN40B is the toughest material, offering hardening capabilities surpassing standard 4340 billet steel. This high-grade material allows an EN40B billet steel crankshaft engine to rev faster and more smoothly due to its unique harmonics. Increasing the stroke with our stroker crankshaft, which weighs only 20.20kg, increases the capacity to 2.545 cc (OEM 2.480cc) with std pistons and 2.545 cc with +0.50mm oversized pistons. Also, it is perfect for high-revving engine builds, elevating your DAZA build to new heights. Enhancing the stroke will boost the torque and power output of your engine. The fully counterweighted and precisely balanced crankshaft also increases torque and ensures your engine revs seamlessly. The crankshafts for 5-cylinder engines are sold as unbalanced, and we offer fully balanced services at an additional cost, but a full rotating assembly weight is required.