HardRider Motorcycle 

Nitrous is the cheapest way to get substantial power, followed by Turbo and then Supercharger. Compare Nitrous kit from $590, Turbo kit $3239 and Supercharger kit $5500. Nitrous kits simply bolt right on with the minimum of effort and fits any vehicle, engine, carb or fuel injection system. Nitrous can be run very simply just by pressing a button to spray nitrous into your airbox when needed (Dry Kits for fuel injected and Wet Kits for carbureted). Adjustable power from 20, 40, 60, 80 or 100 plus, by simply changing the jets in the line. Since most riders only use a small jet, the air sensor in the airbox will trigger more fuel. If you want a bit more hp, you can increase fuel with a power commander and self tune. However for larger demands (specific to the engines capability) will require more finite tuning and ensuring your fuel pump, carbs or injectors are capable of delivering more fuel to compensate the addition of more nitrous. Full dyno tuning to ensure proper AFR (air/fuel ratio) is vital for a healthy engine, same for turbo and superchargers.
Note: Nitrous is NOT Nitro Methane. Nitro methane is a fuel used by top class Drag bikes/cars and is in no way similar or linked to nitrous oxide. In fact they couldn't be more different, as nitro methane is a flammable fuel, while nitrous oxide is a non-flammable oxidiser. 

Turbos are by far the best option and uses the exhaust to power the turbine which rotates the induction part of the turbine and pulls ambient air into the throttle bodies. Its a very clean system that does not use any engine power to force air into the engine. Many drag racers use a combination of turbo and nitrous. The only downside is that turbo kits are only available for a select group of motorcycles. ProBoost Street Kit comes preprogrammed and produces 240 rwhp using bikes oil cooler and rad, best for street and highway. For larger boosts, our Race Kit provides upto 350rwhp. We can also provide a preprogrammed ECU or you can send us your ECU and we can program at a lower cost. There are many variations of a turbo kit install, and our kits come in Street and Race Kit versions. However both use the stock oil cooler and radiator so both can be ridden on the street and highway.  Our Race Kit can be modified to even higher horsepower with modifications using a variety of controllers ie. like our own Fuel Enrichment Controller, MaxxECU or many others. The ProBoost Turbo system has 25 years experience. With a ProBoost system you install and ride. We Love Turbos!  HardRider is the Canadian and USA distributor for ProBoost Turbos. Motorcycle turbo kits.

Superchargers provide power through the whole power band but use some power from the engine to drive the turbine. In drag you don't need low end power since your never low in the rpm band, but for street racing superchargers are ideal. Superchargers provide constant power band like an aspirated engine from idle to redline. Take into consideration the Kawy H2 has its own supercharger and its very effective but its not customizable, it is fixed. Our systems use state of the art Rotrex Superchargers. Rotrex superchargers are the latest in forced induction systems offering high efficiency, compactness, reliability and silent operation. The C range consists of the C15, C30 and C38 families. Our Superchargers can be built to accommodate whatever rwhp you require up to 450rwhp considering status of the engine build etc.