SynicalWS6

I am adding about 100 shot of dry nitrous to my car. I got the TR-6's cause everyone says you should run them if your running nitrous. My friend who knows a crap load more than me with cars said that the tr-6s arent necessary and that I could run the chance of fouling my plugs. Should I leave the tr-5's in or should i go a step colder and run the 6's?

5 Liter Eater

iTrader: (5)

Certainly the TR55's are more ideal for the stock motor but the rule is one step colder for every 50 or 100 HP (can't remember which) increase. I have never heard of anyone fouling with them.

PREDATOR-Z

TR6's good up to 150. IMO they are a good safety for the price.
As far as fouling, you shouldn't run N2O if you can't tune your car.