McLaren GT ECU Tune
$5,499.00
Product Description
The McLaren GT is proof of just how far the M840T platform can stretch. It's McLaren's first dedicated grand tourer, built on the same underlying architecture as the 720S but reworked specifically for comfort, with a carbon-fiber rear deck and glazed tailgate that open up meaningfully more luggage space than any other McLaren has ever offered. Its engine, a bespoke version of the M840T designated M840TE, is tuned for smooth, effortless delivery rather than an outright peak number, making a factory 620 PS, and its engine mounts are roughly half as stiff as the 600LT's to keep the ride genuinely refined. The same engine architecture that powers an extreme track hypercar also powers a car built for comfortably covering serious ground, which says a lot about how good that architecture really is.
Weistec's ECU calibration for the McLaren GT is a software recalibration of that factory M840TE. It's built to work with the comfort-oriented engineering McLaren already put into this car rather than override it. Factory protections, including knock control, thermal management, and OEM diagnostics, remain fully intact. Delivered with OEM-level validation, it takes this McLaren GT from a factory 612 hp and 465 lb-ft to 745 hp and 550 lb-ft, giving the most refined McLaren in the lineup a genuinely thrilling edge to go along with it.