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IPD 981 Cayman / GTS / GT4 Competiton Plenum
Product Type: Engine
Application: Cayman GT4 & 981

Price:$ 1295

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SharkWerks has partered many times with IPD to test and install its competition plenums and throttle body upgrades over the past 10 years, and now utilized this latest design on our own shop GT4.

The "Competition" versions of the 981 Plenums upgrades the factory 74mm throttle body to the larger, 82mm throttle body found on the 997 GT3. 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 throttle body and considerably improve air flow.

The new 981 Plenums also benefits from the internal dimpling effect that IPD is implementing on all future plenums. This internal dimpling allows control of the boundary layer to maximize air flow. Just like a dimpled golf ball travels farther than a smooth golf ball, the controlled turbulent air creates less friction and "tumbles" over a given area more efficiently.



Advertised power gains with the 981 Competition Plenum are approximately the same as with the 987.2 Competition Plenum (~18 horsepower). The bulk of the power gains from the IPD Plenum begin around 4000 rpm and continue through to redline, most fully realized in the 6000 rpm range. IPD performance gains stay above both factory power curves throughout the entire rev range.

Sold as a complete kit including throttle body (normally sold separately for approximately $375).


    You may also be interested in:

SWGT4 Lightweight Flywheel & Sport Clutch Kit

981 Cayman / S / GTS / GT4 Tuning

BMC High-Flow Air Filter 981 / GT4


    You can see this product installed on cars in our project gallery:



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