Guys, I hate to be negative but putting the combustion air inlet directly into the hot cooling air stream will cost you about 1% / 10 Degrees F! I assume the MAS or oxygen sensor will sence this increase in ambient air temp or decrease in A/F ratio and de fuel the injection quantity accordingly. At best, if you insist on K&N filter media, use the model that replaces the factory filters directly and gain back the loss due to increased combustion air temp. People should question why the Nissan engineers went through all the trouble and cost to design the intake system the way it is as OEM.