yes waiting staging lines will increase iat like crazy until the exchanger gets some airflow. that whats happen to me but in standard stop and go traffic iat will climb to the moon jejej. but now the fans keep the airflow and mantains a much better iat even idling. these high cfm fans ( for their size) effectively lower my iat 20 degrees from the standard mb setup, and also lower iat way faster under acceleration and deceleration. and the best thing is everything look stock, no modification at all. and no maintanence, just used the exchanger pump signal to start and stop the fans and works flawlessly. they just use 2.4 amps between all fans, so the electrical system is not compromised for the amps for my stereo