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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
*M-Tuner requires a one time only bench procedure which requires the ECU to be sent to M-Engineering HQ
These spark plugs are equivalent OEM specs with the exception of a slightly smaller gap
Our painstaking R&D and large level efforts made with the M840T engine have made tuning the SENNA a safe and enjoyable experience as well
Signal to noise ratio : >100dB
These are not recommended for stock applications
M-Engineering calibration suite ECU tune for McLaren 4.0L M840T Model:765LT *M-Tuner requires a one timeOur record setting calibrations for the 720s! M Engineering ECU calibrations are on the fastest 720s in the world! Our painstaking R&D and large level efforts made with the M840T engine have made tuning the SENNA a safe and enjoyable experience as well! This is our base calibration which does not include any features or the M Tuner. Please specify what octane fuel you will be using and your level of modifications when ordering. McLaren 720S