IPD Porsche 981 Cayman/Boxster Non-S 2.7L 82mm Competition Plenum (‘13-’16)

After a very extensive R&D program we launched the 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 identical to the 987.2 intake. Porsche made a few upgrades with the 981, most notably being that the 981 draws outside air from both driver and passenger air intakes instead of the driver's side only as previously found with all 986, 987 and 987.2 applications. IPD has developed a custom silicone hose designed to perfectly fit the larger 82mm TB and considerably improve air flow. The 981 Plenum also benefits from the internal dimpling effect. This internal dimpling allows us to control the boundary layer and maximize air flow. Just like a dimpled golf