It achieves this by optomising the fuelling. They do make a great difference to the bike. Anyone who has bought one will agree it was a good investment.This is the power commander 3 USB. This version was replaced by the Power Commander 5 in 2008. The two units basically do the same thing and in fact the PCV uses PC3USB maps. This unit has the wire tap TPS and I will include the positap as it is by far the most effective wire tap on the market. Comes with the instructions, software on CD and the USB cable. I have loads of good maps so just ask and I will probably have a good map for you. The item "TRIUMPH T595 955i Daytona 955 Speed Triple Power Commander 3 USB ALL YEARS" is in sale since Wednesday, November 6, 2019. This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Other Motorcycle Parts". The seller is "performancebikeparts" and is located in Lisburn. This item can be shipped to all countries in Europe, United States, Canada, Australia.