One of our most popular selling products from Agency Power is our Porsche 996 Turbo Dual Flow intake box. Designed several years ago, this intake was meant to replicate the type of airflow that a 997 Turbo gets without having to complete remove the stock intake system. Since the MAF sensor is so sensitive on these vehicles, not having the right pipe diameter, screen to keep air laminar, or poor filtration can all result in blow MAFs. So Agency Power made an add on product which works with the factory back half of the airbox and a stock or aftermarket flat panel filter from K&N or BMC. It includes a 2nd snorkel which fits to the decklid to help get extra air via the left and the right side of the intake box. The stock wing only has airflow coming from the right hand side. Check out this great snap shot of our Carbon Kevlar Intake on this customers Porsche 996 Turbo. This is a great intake system for those wanting to maximize the stock airbox in real world driving conditions. Check out more Agency Power Air Intake Kits Here.