Does SOUL Performance make street long-tube headers for the 991.1?

Yes. The SOUL Performance 991.1 Street Long-Tube Headers is built by SOUL Performance for the 991.1 Porsche 911 Carrera.

Which models does this fit?

The Street Long-Tube Headers is engineered for the 991.1 Porsche 911 Carrera. Fitment is specific to the chassis and model years listed in the Applications section above.

How does it change the sound?

SOUL engineers the Street Long-Tube Headers 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 Street Long-Tube Headers. Many owners add a tune to maximize the gains.

How is it constructed?

SOUL builds the Street Long-Tube Headers from durable mandrel-bent stainless steel with precise, fixture-tested fitment.

Is professional installation recommended?

Yes. We recommend installing the Street Long-Tube Headers through a qualified technician to ensure correct fitment and a proper seal.

Description

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Description

SOUL Performance Street Long-Tube Headers for 991.1 Porsche 911 Carrera

SOUL Performance Products’ Long Tube Street Headers for the Porsche 991.1 Carrera replace the factory manifolds with a true performance-focused design built around large-diameter, free-flowing HJS 200-cell catalytic converters and long-tube runners, unlocking meaningful gains in power, throttle response, and classic flat-six tone. Optimized 2″ primaries and carefully engineered collectors are specifically sized for the 3.8L and 3.4L 9A1 engines, helping the car pull harder through the midrange and delivering verified gains of over 25whp and ft-lb around 3,000rpm where you spend most of your street driving. Each set of headers is hand-built from T304L stainless steel at SOUL’s Willow Grove, PA facility with smooth-radius runners, merge spikes to streamline gas flow into the collectors, and thick water jet,cut flanges manufactured to ISO 9001:2015 standards for durability and a precise seal. The premium HJS HD 200-cell catalytic converters are EURO 4, capable and use a robust triple-foil core and brazing stripe for exceptional longevity under high-heat, high-load conditions, allowing increased flow and performance without the usual check engine light concerns when used as intended. Designed as a direct bolt-on for all 2012-2016 991.1 Carrera variants, these Long Tube Street Headers integrate cleanly with the factory exhaust, arrive with detailed instructions, and are backed by SOUL’s renowned Lifetime Warranty for both street and track use, making them a go-to upgrade for owners who want real, dyno-proven performance and a richer, more engaging exhaust note without sacrificing reliability.

Development & Sound

The factory header design is a basic, mass-produced component that does not meet performance requirements. However, SOUL Performance Products took a distinctive approach by developing a specialized application specifically for the 991.1 platform. They focused on accurately sizing the runners at 2″, aiming to extract optimal power from the 3.8L engine while also achieving significant gains for the 3.4L variant.

Construction

Every set of 991.1 headers is meticulously crafted from T304L stainless steel. These headers feature merge spikes strategically integrated to enhance exhaust flow into the collector, thereby maximizing power output. The headers are equipped with thick water jet cut flanges manufactured to adhere to ISO 9001:2015 standards, ensuring precise fitment and prolonged product longevity. To further ensure their pristine condition upon arrival, each exhaust undergoes testing in a dedicated fixture and is thoughtfully foam packed for secure transportation.

HJS Catalysts

SOUL Performance Products incorporates the most superior catalytic converters available, renowned for their unrivaled flow and exceptional durability within the industry. These converters demonstrate remarkable efficiency, meeting stringent EURO 4 emission standards while simultaneously facilitating increased flow without triggering a check engine light. The HD design adopts a premium triple foil winding technique, ensuring unmatched strength. As an additional feature for enhanced durability, a brazing stripe is employed to prevent any movement or damage to the core during sustained high horsepower abuse. SOUL Performance Products purposefully utilizes a generously sized catalyst that is appropriately matched to maximize gains, leaving no room for compromises in performance.

Power

Independent dyno testing conducted at Apex Autowerks on a Mustang dyno has provided verified results, showcasing consistent peak gains of 9whp and 13ft-lbs of torque. Notably, a noticeable improvement can be observed in the mid-RPM range. Furthermore, substantial gains exceeded 25whp and 25ft-lbs of torque at 3000rpm, a range commonly experienced during regular driving. With the addition of an ECU tune, even greater power enhancements can be achieved, particularly beyond 5000rpm, where adjustments to timing can make a significant difference.

Bolt On & Go

Every set of headers with catalytic converters is meticulously constructed and subjected to rigorous testing within a sturdy aluminum fixture of significant gauge. This process effectively prevents warping and guarantees flawless fitment. Subsequently, the headers are carefully foam packed to ensure they arrive in pristine condition. Moreover, the package includes new high-grade hardware specifically designed for secure attachment between the headers and exhaust flange. Additionally, comprehensive installation instructions are thoughtfully provided in the package, enabling a straightforward installation process suitable for most do-it-yourself enthusiasts.

Features

2″ long-tube T304L stainless primaries with optimized collectors
High-flow HJS HD 200-cell catalytic converters (EURO 4, capable, triple-foil core)
Dyno-proven gains of 25+whp and 25+ft-lb around 3,000rpm
Merge spikes and thick ISO 9001:2015 flanges for flow, sealing, and durability
Direct bolt-on fitment for all 2012-2016 991.1 Carrera models
Backed by SOUL Performance Products’ Lifetime Warranty

Applications

Porsche 911 Carrera: 991.1 | 2011-2016 | 3.0L F6 twin-turbo

Notes

Please be aware that this specific product does not possess CARB certification and may not comply with legal requirements for usage on emissions controlled vehicles. It is solely intended for exclusive use in closed course competitions.

Frequently Asked Questions

Does SOUL Performance make street long-tube headers for the 991.1? Yes. The SOUL Performance 991.1 Street Long-Tube Headers is built by SOUL Performance for the 991.1 Porsche 911 Carrera.
Which models does this fit? The Street Long-Tube Headers is engineered for the 991.1 Porsche 911 Carrera. Fitment is specific to the chassis and model years listed in the Applications section above.
How does it change the sound? SOUL engineers the Street Long-Tube Headers 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 Street Long-Tube Headers. Many owners add a tune to maximize the gains.
How is it constructed? SOUL builds the Street Long-Tube Headers from durable mandrel-bent stainless steel with precise, fixture-tested fitment.
Is professional installation recommended? Yes. We recommend installing the Street Long-Tube Headers 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 Street Long-Tube Headers for 991.1 Porsche 911 Carrera [POR.9911.STH]

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SOUL Performance Street Long-Tube Headers for 991.1 Porsche 911 Carrera

Development & Sound

Construction

HJS Catalysts

Power

Bolt On & Go

Features

Applications

Notes

Frequently Asked Questions

About SOUL Performance

Reviews