If you are running in the nines, or if you are running the stock IC from the factory, I would say so...otherwise, if you are running an aftermarket slic, then probably not...You might pick up a little if you are in the very low tens over a good aftermarket slic, but you might not
If you live up north, you might get buy with the stock radiator...oth erwise, if you are in a warm part of the country where it approaches a 100 dgs, then I am guessing you are going to have to work on the cooling