IPD Plenums 981 DFI GT4 / Boxster Spyder (3.8L) Competition Plenum supra drag coilover This process involves removing the

This process involves removing the sensor from the bung while still connected to the controller device

9 Oxygen Sensor

No worries of the oil pan being damaged by hitting anything you may run over

the sub-tank stays full in all driving conditions

IPD Plenums 981 DFI GT4 / Boxster Spyder (3.8L) Competition Plenum supra drag coilover This process involves removing theAfter a very extensive R & D program we are proud to launch the new 981 IPD 82mm Competition Plenums. We only offer "Competition" versions of the 981 Plenums which upgrades the factory 74mm throttle body with the larger 997 GT3 82mm throttle body. This combination has proven to be considerably more popular and deliver even more performance. This Competition version will work with both 3. 4L "S" and 2. 9L "Non S" applications. The 981 intake is nearly