More air is better when talking about forced induction. Restriction is the enemy! If you can let more air in, it won't matter if it's a little bit warmer. Ofcourse Cold air is better air, but not at the cost of restriction. The heat made at a turbo or supercharger is magnified exponentially by restriction. More so by a turbo attached to exhaust manifold, but air is only as cold as the hottest part in the chain.