SKU: 68552089442

IPD 986 Boxster Non-S 2.7L Competition 74mm Plenum ('00-'04) (86174-2.7)

Sale price$382.50 Regular price$425.00
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Description

IPD 986 Boxster Non-S 2.7L Competition 74mm Plenum ('00-'04) (86174-2.7)Requires use of 74mm Throttle Body (Sold Separately) The 986 Boxster marked Porsche's return to a purpose built 2 seat roadster, since the famed 550 Spyder. This liberating open cockpit platform was instrumental in saving Porsche from financial uncertainty and was their highest volume seller from 1997 to 2003. The perfectly balanced mid engine 986 Boxster was designed to deliver driving excitement on winding roads while enabling the driver (and

Requires use of 74mm Throttle Body (Sold Separately)

The 986 Boxster marked Porsche's return to a purpose built 2 seat roadster, since the famed 550 Spyder. This liberating open cockpit platform was instrumental in saving Porsche from financial uncertainty and was their highest volume seller from 1997 to 2003.

The perfectly balanced mid-engine 986 Boxster was designed to deliver driving excitement on winding roads while enabling the driver (and passenger) to take in the sights of the surrounding environment while listening to the intoxicating mechanical symphony of the flat 6 exhaust soundtrack.

The feel of a Boxster can only be further heightened by adding improved performance. The IPD Plenums provide impressive net power and torque gains throughout both power bands making for an even more visceral Porsche driving experience.

All 986 Boxster IPD Plenum applications are designed to utilize the larger 74mm Porsche throttle body. The combination of the patented "Y" designed IPD Plenum combined with a larger TB, allows for improved airflow and intake air velocity. Porsche wants the Boxster to perform, just not so well that it competes with more “prestigious” models. Controlling (aka Reducing) engine output has effectively been achieved by simply choking the inlet air with smaller throttle bodies, preventing peak power from being realized.

The IPD Plenum is the absolute single best performance mod you can install on a Porsche Boxster. Installation of this plenum is relatively straightforward although IPD strongly recommends the install be performed by a qualified Porsche technician. The Plenum comes with our custom silicone hose that fits the larger 74mm TB as well as additional hardware to complete the installation. The only additional component required is the 74mm Throttle Body which can be purchased separately below.

The 986 Boxster Non-S 2.7L Plenum provides impressive net performance gains throughout both power bands, especially in the midrange where we all want and enjoy it most. The Boxster 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 12+ wheel HP and 12+ wheel TQ 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.

Custom IPD Silicone hose is included with the purchase of Plenum.

Features:

  • Manufactured using only the highest quality materials
  • Gives your vehicle a truly unique and exotic style
  • Outperforms the competition with dyno proven results
  • A taste of luxury combined with unbeatable power gives you a superior edge
  • Fitment guaranteed and withstands the test of time.
  •  

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 68552089442

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    4.2 ★★★★★
    Based on 29 reviews
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    michael underwood
    Alexandria, US
    ★★★★★ 5
    Quality filter at a great price.
    Style: CA9401
    Great filter, very similar to K&N at a way cheaper price.
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    Reviewed in the United States on January 14, 2026
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    scAmazon ShoPPer
    Bozeman, US
    ★★★★★ 3
    Fit perfectly, but questionably thin.
    Style: CA11053A
    This was an exact fit for my 2017 Kia Forte S. My only convern is that it is half the width of the stock filters. Hopefully the different material will make the difference over time. Didn't notice a loss or gain of torque or acceleration after swapping for my old dirty filter.
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    Reviewed in the United States on June 15, 2025
    C
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    Casey M
    Louisville, US
    ★★★★★ 5
    Increased MPG!
    Style: 33-3131
    I don't know if it increases power, but it for sure has an increase of 1-2 MPG. About the same MPG increase as a K&N, but half the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 4, 2026
    J
    Verified Purchase
    John K.
    Natrona Heights, US
    ★★★★★ 4
    Time will tell
    Style: CA11053A
    As another reviewer pointed out, the OEM paper filter is almost 3 times thicker than this one. All things equal, thicker would mean for filtering surface area. So with less filter media surface area, the filter would clog up quicker. However, since this is washable, maybe that's a moot point. I also noticed on my Hyundai Tucson, the rim of this filter must be slighter thicker because I had a tougher time clipping the filter box closed with this one installed. I am keeping my OEM for now, just in case.
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    Reviewed in the United States on December 6, 2025
    N
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    Nasir A.RAHMAN
    Los Angeles, US
    ★★★★★ 5
    PhilTop engine filter 1/2 the price of K&N filter No difference
    Not much difference than K&N filter But 1/2 the price 100% identical
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    Reviewed in the United States on April 17, 2026

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