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do88 Performance Plenum for 991 Porsche 911 Carrera, GTS, S, and Turbo / Turbo S [TR-300-9912] - Kit

do88 Performance Plenum for 991 Porsche 911 Carrera, GTS, S, and Turbo / Turbo S [TR-300-9912] - Kit

do88 Performance Plenum for 991 Porsche 911 Carrera, GTS, S, and Turbo / Turbo S [TR-300-9912]

$620.96

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The do88 Performance Plenum for the 991 Porsche 911 Carrera and Turbo enhances airflow and engine performance with a Y-shaped design for improved air distribution. Meticulously refined through development and verified via CFD and flow bench testing, it eliminates restrictions, boosts throttle response, and delivers consistent power gains. Equipped with CNC-machined connections and durable silicone hoses, it offers precision fitment and long-lasting reliability.

These items are typically not in stock and either made-to-order or special order from the manufacturer. After you order we will confirm the estimated lead time and other order details. If you have a specific deadline to receive this order please talk to us before placing your order to ensure that the manufacturer can meet your expectations.

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SKU: TR-300-9912 Category: Intake Accessories Vehicle: Porsche 911 Carrera Brand: do88 Performance

This item and any similar items are not CARB approved and therefore not for sale in the state of California or other states that require CARB certification. No assessment is being made regarding this product's compliance with the EPA's anti tampering policy, only that the necessary testing and validation has not been completed. Please check with your local enforcement officials regarding legality of use in your place of residence.

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DESCRIPTION & INFO

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

do88 Performance Plenum for 991 Porsche 911 Carrera, GTS, S, and Turbo / Turbo S [TR-300-9912]

The do88 Performance Plenum for the 991 Porsche 911 Carrera and 911 Turbo is engineered to optimize airflow and boost engine performance. Unlike the OEM T-shaped plenum, which forces air to abruptly change direction, the do88 plenum features a Y-shaped design with soft, sweeping lines for improved air distribution. Radiuses and angles have been meticulously refined through extensive development, ensuring peak efficiency. Equipped with CNC-machined connections and high-quality silicone hoses, this plenum ensures precise fitment and long-lasting durability. Verified through Computational Flow Dynamics (CFD) and Superflow SF1020 flow bench testing, the do88 plenum eliminates restrictions, delivering enhanced throttle response and consistent performance gains across the entire powerband.

Development

Development began with a comprehensive 3D scan of the engine bay to identify structural limitations. Drawing on experience from previous Porsche plenums, it was quickly determined that a Y-joint design would be more effective than the T-shaped OEM plenum. From an airflow perspective, the Y-shape offers greater efficiency, distributing air more evenly and reducing pressure drop. The plenum is manufactured from cast aluminum, allowing for complex shapes that CNC machining cannot achieve, prioritizing functionality and maximum airflow over aesthetics.

Features

More air, reduced backpressure and improved airflow
5% higher CFM
Aluminum casting with CNC-machined connections (freeform designed)
Y-design for optimum air distribution
Includes all necessary accessories

Applications

Porsche 911 Carrera: 991.2 (2017-2019)
Porsche 911 Carrera GTS: 991.2 (2017-2019)
Porsche 911 Carrera S: 991.2 (2017-2019)
Porsche 911 Turbo: 991.1, 991.2 (2013-2019)
Porsche 911 Turbo S: 991.1, 991.2 (2013-2019)

Notes

Please note that all products are built to order in the EU and shipped via international air express, however lead times are generally pretty fast
Installation Instructions

About d088 Performance

do88, headquartered in Nykvarn near Stockholm and established in 2007, began as a distributor of universal silicone hoses and has since grown into one of the northern hemisphere’s largest suppliers in this category, shipping products globally. Initially focusing on Swedish brands like SAAB and Volvo, do88 expanded to develop model-specific parts that extend beyond hoses, including intercoolers, oil coolers, radiators, intake systems, and more for various car brands and models. All products are developed in-house, adhering to do88’s high standards for performance and quality. Known for a commitment to quality, proven performance, and strong customer support, do88 has earned a respected reputation in the auto parts industry.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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