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Description

SOUL Performance Sport Downpipe for 982 Porsche 718 Boxster & Cayman

SOUL Performance Sport Catalytic Converter Downpipe for the Porsche 718 Boxster and Cayman wakes up the turbocharged flat-four with more power, quicker response, and a far more engaging soundtrack, all while retaining emissions hardware and avoiding check engine lights. Designed as a direct bolt-on for all 2017+ 718 Boxster and Cayman models, this high-flow HJS HD 200-cell catalytic converter downpipe replaces the restrictive factory unit with thick-wall, mandrel-bent T304L stainless tubing that tapers from 90 mm at the turbo outlet to dual 55mm exits, reducing back pressure and sharpening throttle response. Independent dyno testing has shown repeatable peak gains of 14 whp and 24 ft-lb of torque, with a notable midrange punch that you can feel every time you roll into the throttle. The result is a deeper, more urgent exhaust note with extra turbo spool and crackle, but without harshness, fumes, or unwanted CELs. Each downpipe is back-purged TIG welded, rigorously quality-checked, fixture-tested for precise fitment, and foam packed with new hardware and detailed instructions, all backed by SOUL Performance’s Lifetime Warranty (with a 3-year warranty on the HJS catalyst) for confident use on both street and track.

Development & Testing

In its factory configuration, the 718 model tends to be relatively quiet. However, by substituting the restrictive stock catalytic converter with a high-performance alternative, both the drivability of the vehicle and the captivating turbo sounds can be significantly enhanced. Importantly, this upgrade does not introduce any unfavorable elements to the overall exhaust tone. The inclusion of the HJS HD 200-cell catalytic converter, along with the incorporation of smooth mandrel bent piping ranging from 90mm to dual 55mm outlets, promotes improved throttle response and delivers a more exhilarating exhaust note. This bolt-on solution is remarkably easy to install, requiring no modifications, and offers the advantage of being reversible. Overall, it serves as an excellent choice to make your Boxster or Cayman a more thrilling driving experience.

Construction

Every individual downpipe is meticulously assembled using mandrel bent T304L stainless steel, characterized by its robust wall thickness. Following the assembly process, rigorous quality checks are carried out to ensure adherence to the highest standards. To guarantee exceptional weld quality and longevity, back purged TIG welding techniques are employed, ensuring optimal weld penetration.

HJS Catalysts

The catalytic converters utilized are of the utmost quality, renowned for their industry-leading flow characteristics and exceptional durability. These converters exhibit impressive efficiency, enabling compliance with stringent EURO 4 emission standards while simultaneously facilitating an increase in flow, all while ensuring that no check engine light is triggered. The HD design incorporates premium triple foil winding, maximizing its strength and resilience. As an additional measure to enhance durability, a brazing stripe is included, effectively preventing the core from shifting or sustaining damage even under sustained high horsepower abuse. The 200-cell design features a premium wash coat of precious metals, ensuring a high level of catalytic effectiveness even with the increased exhaust flow.

Power

Verified independent dyno testing conducted at Growler Motor Labs has unveiled conclusive and repeatable peak gains of 14whp and 24ft-lbs of torque. Notably, these gains are accompanied by a noticeable improvement in the mid RPM range, further enhancing the performance characteristics of the vehicle.

Bolt On & Go

Every individual downpipe undergoes a rigorous quality-checking process to maintain the highest standards. Additionally, each downpipe is meticulously tested in a fixture to ensure perfect fitment. To safeguard its pristine condition during transportation, the downpipe is carefully foam packed. Furthermore, new hardware specifically designed for the two bolt flanges is included, simplifying the installation process. Thorough and comprehensive installation instructions are thoughtfully provided in the package, making it a straightforward task that can be easily accomplished by most DIY enthusiasts.

Features

90 mm to dual 55 mm thick-wall T304L stainless tubing to cut back pressure and sharpen throttle response
Peak power gains of 14whp and 24ft-lbs of torque
Added performance and tone without a check engine light
Weighs 4.7lbs less than factory exhaust components
Direct bolt on installation
All SOUL Performance Products components are backed by a renowned lifetime warranty (3-year warranty on the HJS catalyst)

Applications

Porsche 718 Boxster: 982 | 2016+ | 2.0L F4 turbo
Porsche 718 Cayman: 982 | 2016+ | 2.0L F4 turbo

Notes

Please note that this particular product does not possess CARB certification and may not comply with legal requirements for use on emissions controlled vehicles. It is designed and intended solely for race usage.

Frequently Asked Questions

Does SOUL Performance make a sport downpipe for the 982? Yes. The SOUL Performance 982 Sport Downpipe is built by SOUL Performance for the 982 Porsche 718 Boxster Cayman.
Which models does this fit? The Sport Downpipe is engineered for the 982 Porsche 718 Boxster Cayman. Fitment is specific to the chassis and model years listed in the Applications section above.
How does it change the sound? SOUL engineers the Sport Downpipe to sharpen tone and character while controlling unwanted resonance. The final sound depends on the rest of your setup.
Is an ECU tune required? A tune is not required to fit the Sport Downpipe. Many owners add a tune to maximize the gains.
How is it constructed? SOUL builds the Sport Downpipe from durable mandrel-bent stainless steel with precise, fixture-tested fitment.
Is professional installation recommended? Yes. We recommend installing the Sport Downpipe through a qualified technician to ensure correct fitment and a proper seal.

About SOUL Performance

SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.

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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SOUL Performance Sport Downpipe for 982 Porsche 718 Boxster & Cayman [POR.718.SCC]

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SOUL Performance Sport Downpipe for 982 Porsche 718 Boxster & Cayman

Development & Testing

Construction

HJS Catalysts

Power

Bolt On & Go

Features

Applications

Notes

Frequently Asked Questions

About SOUL Performance

Reviews