This guy is asking a genuine question so let's just stick to that and help him out if we can
The most economical way to give your car a boost is NOS, and it is also more discreet as compared to turbo-charging. Reversing of the mod is also less messy, and easier. However, word of caution is that NOS is like drugs, once you are on it, it will be a downward slide until your engine goes "piang"
You can technically keep adding power to the engine but have you check if your stock system, such as gearbox,, cooling system ...etc can handle that additional load ?
In my opinion, the Type R is already very respectable for street racing. Power may not be the only determinant for traffic light sprint.
Few years back, some the souped up WRX boys were embarrassed by a seemingly stock Golf GTi, little did they know that that Golf has the latest DSG gearbox, and the WRX manual gearbox was simply no match.
