Hello EvanH, thanks for the questions and feedback on the ad.
here is a post I did that should help explain the benefits of water-meth injection.
Water/Meth Injection Q&A (Labonte MotorSports)
The fluid is injected pre-throttle plate. So after your turbos and FMIC.
Think of it as On Demand 116 octane boost. Our systems have an electronic control module that reads some variation of engine load depending on the module (our VC series of injection controllers) The controller sends a signal to the pump to regulate the amount of fluid injected. Fluid goes in the intake as a mist or fog and then into the cylinders.
Systems consist of Fluid Tank, 150psi pump, atomizing nozzles, high pressure hose, fittings etc etc.
If you are just driving around town the system will not spray. Once you get on it, system activates and cools down IAT and increases octane. Now you can run more boost, timing, or lean out fuel and make the same hp you would need C116 race gas to do.
Let me know if you have more questions or need more information.
Best regards,
Dan