GT-R Engine

Engine-side hardware and calibration for the VR38DETT. The R35's factory mass airflow sensors max out on airflow metering once you fit upgraded turbos and raise boost, and can't cope at all with vent-to-atmosphere blow-off valves.

Our Speed Density Conversion Kit removes that ceiling — 100% plug-and-play with no cutting or splicing, fully reversible to stock, and it relocates the intake air temperature sensor post-intercooler for accurate air density calculation. It's aimed at cars beyond 700 wheel horsepower. Also here: 4 Bar MAP sensors and complete MAP sensor kits, MAF-to-PCV adapters, and ECUtek engine tuning from stage tunes to fully built engine packages.

Feel free to contact us with any questions regarding the Speed Density Kit or ECUtek tuning for your build.