For those who seek higher boost levels, this goes hand in hand with the Bosch MAP Sensor upgrade. When you upgrade to a 3 Bar, 3.5 Bar, or other Bosch MAP sensor for the Mazdaspeed 3 or Mazdaspeed 6, you'll need to connect it to the factory ECU harness and this is the easiest and best way to do so. With factory appearance and quality, the Bitwise Motosports connector makes install and modification of the MAP sensor a breeze.