SZM SPEED DENSITY KIT – STANDARD VERSION NISSAN GTR R35

The SZM Speed Density Kit (Standard Version) is the key to unlocking the full potential of EcuTek or Syvecs tuning on your R35. By switching from Mass Air Flow (MAF) to Speed Density, you eliminate the stalling and hesitation often caused by large intakes or atmospheric blow-off valves. This kit provides the necessary hardware to relocate the Intake Air Temperature (IAT) reading to the charge pipes, ensuring your ECU reacts to the actual air temp entering the engine, not just the ambient air at the filter.