The Nissan Interstar 2.3 BlueDCi Bi-Turbo 180hp (2021 ->) produces 180bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 480Nm, a gain of 30bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.