why not drill holes in the box aswel and with a fat cold air feed im sure you will be able to get the nice sound aswell as the same performance from the air box. in hot weather the hot air soak should be reduced as you will have the fat intake going to it its what ive done on my previous cars and works better than the intuction kit and descreet. get more air and same noise but no loss in power or noticeable anyways... hope it helps