IPD Plenums 981 DFI Cayman S / GTS (3.4L) Competition Plenum EBC high fin density

high fin density

Next we approached another design flaw in the tight radius bends into the core

slight imperfections or weave pattern variances can be expected

and heat fatigue

25mm Female Fitting

IPD Plenums 981 DFI Cayman S / GTS (3.4L) Competition Plenum EBC high fin densityAfter 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