Description
Fabspeed XperTune for the McLaren 540C/570GT/570S recalibrates sensor strategies, air/fuel targets, and boost control to deliver roughly +76whp and +86ft-lbs while maintaining OEM-like drivability and reliability. Developed on Fabspeed’s Dynojet, it offers maps for stock cars and builds with Sport Cats, bypass pipes, exhausts, or upgraded turbos.
![Fabspeed XperTune Performance Software for McLaren 675LT [FS.MCL.675LT.ECU]](https://diamondusedparts.com/wp-content/uploads/2026/04/fabspeed-xpertune-performance-software-for-mclaren-675lt-fsmcl675ltecu.jpg)





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