NOS for your Harley

NOS - Horsepower in a bottle
N₂O - What is NOS and how does it work?
Firstly the terms NOS comes from a company name Nitrous Oxide System. They was one of the first to develop NOS system for cars. When Nitrous oxide is injected 33% oxygen saturation is reached
- In air we only have 21% oxygen. N₂O is commonly known as laughing gas and is the only way out if you have to pull out a tooth and you really do not want to. And in the other end it is a great oxidiser which means that it releases oxygen and especially at higher temperatures. You can produce Nitrous oxide by heating ammonium nitrate but I do not think you should try that at home, not at your neighbors house either  by the way.
So no we know that Nitrous oxide is better to carry oxygen than air and that it can be contained under pressure in a bottle. In the other end we have an engine that can combust more fuel if it has access to enough oxygen. Many people believes that the gas is flammable in itself, but that is not the fact. When exposed to high temperature,s as in you combustion chamber of your engine, it release more oxygen than can be carried into the engine with ambient pressure air.  Another effect is that when the Nitrous oxide is injected it "steals" energy from its surroundings resulting in a colder air/fuel mix and therefore......
Yes - More air/fuel per the same volume. That is great isn't it?
Absolutely, but there might be a small problem - Not all engines are made for a sudden increase in effect, in some cases doubling the amount of horse powers in not many seconds. For some engines this may result in steel parts coming out in the most unusual places, and believe me you do not want that! If you are lucky you only melt the piston or even your valves.
But as with all beasts, and I am not talking about your wife, it is fun when controlled. There are a lot of NOS system out there and with most of them you can control to a certain degree the power. One supplier of such equipment for Harleys is:


They supply a system called Wet Nitrous Kit and it stated to fit Harley Davidson. I have not tried it so this is not a product review - Even I would love to try it.
This is how it is described by MPS:
The Adjustable, Direct Port Nitrous System
Touch the button and your "hawg" turns into a wild boar. With a super strong bottom end, Harley engines can take more pushbutton horsepower than most. And, the fully adjustable Fogger™ lets you choose how much is just right. With the jets included in each Harley kit, you can expect to see a 30% to 40% increase in horsepower and torque. Plus, the Fogger™ can be adjusted for even more (or less) power by simply changing jets if your engine is modified. 
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They also state that most engines will need more fuel that your petcock can supply - That is scary in a fun way! The kit shall be easy to install and if done correctly you should be able to install it in an afternoon.
And it looks like you are going to the moon:

 And a complete kit like this

will set you back approximately 1230 $ if you go for the big fun!
So good luck guys - Check out their website and see if they have something for your bike!
Erik Michelsen