Hey guys I just bought a greddy emanage ultimate for this turbo set-up im doing, and im gonna buy a harness from boomslang, but they have 4 choices to pick from.....


1.(air & water input)
2.(knock& water input)
3.(knock& air input)
4.(dual knock inout)

Which of these should I get?


Thanks

 

Air and water is what most people use.

 

Thanks much appreciated...