IPD 82mm Competition Plenum for 981 Porsche Cayman GT4 / GT4 Clubsport [81482-3.8]

IPD 82mm Competition Plenum for 981 Porsche Cayman GT4 / GT4 Clubsport [81482-3.8]

The IPD 82mm Competition Plenum for the 981 Porsche Cayman GT4 and GT4 Clubsport is the result of an extensive R&D program aimed at maximizing performance for track-focused drivers. Available exclusively as a “Competition” model, this Plenum upgrades the factory 74mm throttle body to the larger 82mm throttle body from the 997 GT3. This combination has proven to be exceptionally popular among enthusiasts, delivering significantly enhanced power and responsiveness. Designed for those looking to push their 981 Cayman GT4 to new performance heights, the IPD 82mm Competition Plenum is the ideal upgrade for optimal airflow and throttle response.

Engineering

• The 981 intake is nearly identical to the 987.2 intake, though Porsche made a few upgrades with the 981—most notably, drawing outside air from both driver and passenger intakes, rather than just the driver’s side as in the 986, 987, and 987.2 models. IPD has developed a custom silicone hose precisely designed to fit the larger 82mm throttle body and significantly improve airflow. The 981 Plenum also benefits from an internal dimpling effect, which helps control the boundary layer and maximize airflow. Similar to how a dimpled golf ball travels farther than a smooth one, controlled turbulent air reduces friction, allowing it to “tumble” more efficiently over a given surface area.

Power

• The 981 Competition Plenum delivers power gains nearly identical to those of the 987.2 Competition Plenum, achieving 20 horsepower and 16 foot-pounds of torque at the wheels. Most of the power increase begins around 4000rpm, continues steadily through to redline, and fully materializes in the 6000rpm range. IPD’s performance gains remain above factory power curves across the entire RPM range.

Features

• 82mm intake
• Improved airflow
• Internal dimpling
• +20hp / 16 ft/lbs

Applications

• Porsche Cayman GT4: 981 (2014-2016) – 3.8L F6
• Porsche Cayman GT4 Clubsport: 981 (2015-2016) – 3.8L F6

Notes

• This Plenum is specifically designed to fit the larger 997 GT3 82mm throttle body and is not compatible with the standard throttle body
• It is highly recommended that the installation of all Plenums be performed by qualified and trained Porsche technicians
• Custom IPD Silicone hose is included with purchase price of plenum

About IPD Plenums

Innovative Pro Design (IPD), founded in 2004 by Mike “Turbo” Kirakosyan, is based in Southern California, the heart of Porsche tuning. IPD is renowned for its patented “Y” design Intake Plenums, which enhance power and torque through optimized airflow. Developed with Mike’s extensive experience as a fabricator, engine builder, and Porsche expert, the Plenums underwent rigorous testing, including over 1000 dyno pulls. With a product range covering over 60 Porsche models, IPD continues to innovate and fine-tune its designs. Backed by a 100% satisfaction guarantee, IPD consistently delivers impressive, dyno-proven performance gains, making it the ultimate Porsche performance upgrade.