1. No. The increase in oxygen present in the exhaust may actually increase the efficiency of the converter. Since the use of nitrous is normally limited to 10-20 seconds of continuous use, there usually are no appreciable effects. Temperatures are typically well within acceptable standards.
2. Most stock fuel pumps will work adequately for smaller nitrous applications. It is important to check to see if your pump can flow enough fuel to your existing fuel system, as well as being able to supply the additional fuel required by the nitrous kit under full throttle conditions. It may be a good idea to dedicate a separate fuel pump to the nitrous kit.
3. The bottle should come with siphon tubes and, in order to maintain proper nitrous pick-up, it is important to mount the bottle correctly. they reckon you should mount the bottle at summit like a 15 degree angle with the valve end higher than the bottom of the bottle.
4. Most late model ignition systems are well suited for nitrous applications.
5. No mate. Chilling the bottle lowers the pressure dramatically and will also lower the flow reate of the nitrous causing a fuel rich condition and reducing power. On cold evenings you might run on the rich side.
6. Dunno, lol! ask where you bought it from they will be able to tell you!
7. Not directly. Detonation is the result of too little fuel present during combustion (lean) or too low of an octane of fuel. Too much ignition advance also causes detonation. In general, most kits engineered for stock type engines will work with premium type fuels and minimal decreases of ignition timing.
hope this helps matey!! good luck and get those friggin piccies up when its done!! I maybe wrong with what im saying, but im 99% sure im right, love nitrous and have read into it for years so with nitrous im pretty good lol!