The Chrysler Town and Country 4.0 V8 250hp (2005 - 2016) produces 250bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 270bhp and 370Nm, a gain of 20bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.