Quote Originally Posted by BullzEye View Post
Even though TR6's are 2 ranges colder, they would be fine in my Stock GTP?.. most people are telling me to use 606's on here.. or I just won't benefit the TR6's max potential until I have the other mods?.. but for now they will do fine?
If you run too cold of a plug your car will not run as strong as it can, and will get poor gas mileage. The colder range plugs are for killing knock retard once you start modding