I have a semi build b20v with a dry nos kit install with relay and switch on steering but I had a ? I wanted to get my car tune but I want to have both step up all motor and with nos can it be done with nos on a switch not on the ecu. I was thinking if I get it tune with nos would it hard to drive when I don’t want to race with the nos cause of the fuel and air being higher cause of the nos I want to spray sometime not all the time so should I get the nos connected to my s300

 

Yes, it should absolutely be connected to your s300. This requires an "activation" switch, and once activated, the computer will engage the N2O when all specified conditions are met. The advantage of this is that the engine will perform it's very best NA and will perform safely on the spray when called upon. The days of relying on the button are long behind us.

 

https://www.hondata.com/help/smanage...ml?nitrous.htm