M-Engineering calibration suite ECU tune for McLaren 3.8L M838T upgrade Let your engine breathe a

Let your engine breathe a little better while still filtering down to 4-5 micron per ISO5001 filtration standards

utilizing two power supplies and two output sections

These spark plugs are one step colder

4 ohms mono : 6

The kit includes the most up to date water pump available at the time of purchase (there are multiple revisions since 2011)

M-Engineering calibration suite ECU tune for McLaren 3.8L M838T upgrade Let your engine breathe aM Engineering's ECU calibrations are on the fastest McLarens in the world! 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 P1 McLaren 675LT Calibration Notes McLaren 650S Calibration Notes McLaren 600LT Calibration Notes McLaren 570S Calibration Notes McLaren 570GT Calibration Notes McLaren MP4 12C Calibration Notes