IPD 74mm Competition Plenum for 986 Porsche Boxster S [86174-3.2]

IPD 74mm Competition Plenum for 986 Porsche Boxster S [86174-3.2]

The performance of a Boxster can be further elevated with enhanced power, and the IPD Plenums deliver impressive net power and torque gains across both power bands, making for an even more exhilarating Porsche driving experience. All 986 Boxster IPD Plenum applications are designed to pair with the larger 74mm Porsche throttle body. The patented “Y” design of the IPD Plenum, combined with the larger throttle body, improves airflow and intake velocity. Porsche intentionally limits the Boxster’s performance to keep it distinct from higher-tier models, partially achieved by restricting airflow with smaller throttle bodies, which caps peak power. The IPD Plenum is the most impactful performance upgrade available for a Porsche Boxster, including a custom silicone hose for the 74mm throttle body and additional hardware for a complete installation.

Power

• The 986 Boxster S 3.2L Plenum provides impressive net performance gains throughout both power bands, especially in the midrange where we all want and enjoy it most. The Boxster S Plenum and upgraded 74mm (from 68mm) throttle body package is an absolute must for enthusiasts looking to elevate the driving experience of their vehicle to the next level. Power gains are +15 wheel horsepower and +15 wheel torque with net gains being realized from launch to redline. This is the perfect upgrade for both stock and modified Boxsters with no ECU modifications necessary.

Features

• 74mm intake
• Patented “Y” design
• Optimized airflow
• Improved powerband
• +15whp / +15wtq
• Includes custom silicon hose & hardware

Applications

• Porsche Boxster S: 986 (2000-2004) – 3.2l F6

Notes

• It is highly recommended that the installation of all Plenums be performed by qualified and trained Porsche technicians
• Plenum requires upgrading to the 74mm Porsche throttle body
• Installation Guide

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.