The all new specifically designed IPD 3.8L DFI Carrera intake Plenum is a direct bolt-on upgrade that replaces the factory air intake distributor and utilizes all pre-existing factory hardware and throttle body. The improved IPD intake design allows for smoother, less turbulent and more efficient air flow resulting in impressive power and torque gains for Porsche driving enthusiasts. The superior design of the DFI IPD Plenum provides an additional 15 horsepower at the wheels. Unlike previous naturally aspirated IPD plenums that delivered stronger gains in the mid range, the new IPD DFI Plenums deliver a similar shaped power curve as the factory but are considerably stronger from the mid range to redline without any loses in power down low. Installation time is about 4-5 hours and should only be performed by a qualified Porsche technician. Feel free to give us a call with any questions, concerns or place an order.