The Mazda MX-5 1.8i 16v 126hp (2005 - 2015) produces 126bhp and 167Nm in standard form. Our Stage 1 ECU tuning file raises output to 136bhp and 182Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.