What are the SOUL Performance 997 GT3 competition headers?

The SOUL Performance 997 GT3 headers are competition headers built in-house for the Porsche 997 GT3 and GT3 RS. They feature billet CNC head flanges, a bespoke 5-axis CNC-machined billet merge collector, and smooth-radius large-diameter bends for increased flow, sharper response, and a more aggressive exhaust note from the naturally aspirated flat-six.

What makes the billet merge collector significant?

The bespoke billet merge collector is designed from CAD to CNC for a no-compromise result. It maximizes runner length and eliminates several welds compared to traditional fabricated collectors, improving both performance and long-term durability.

How do the competition headers differ from the street headers?

The competition headers are built without high-flow catalysts and are designed for maximum flow and performance in closed-course and race environments. The street headers retain high-flow catalysts for greater flow than factory without a check engine light, making them better suited for street and track day use.

Is an ECU tune required?

A tune is not required to fit the competition headers. Many owners add a tune to maximize the performance gains.

Is professional installation recommended?

Yes. We recommend installing the Competition Headers through a qualified technician to ensure correct fitment and a proper seal.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

SOUL Performance Competition Headers for 997 Porsche 911 GT3 / GT3 RS

The SOUL Performance 997 GT3 headers are competition headers engineered for the 911 GT3 and GT3 RS to extract the full performance of the high-revving naturally aspirated flat-six. Refining the flange-to-primary tube interface, using smooth-radius large-diameter bends, and implementing performance-oriented collectors with merge spikes delivers increased flow, sharper response, and a more aggressive exhaust note. Each set is assembled in-house in the USA from mandrel-bent, thick-wall 0.065-inch T304L stainless steel with billet 304L stainless head flanges and merge collector, precision-cut on a 5-axis CNC machine.

Development and Testing

Even a purpose-built platform like the GT3 comes fitted with exhaust manifolds restricted in terms of primary tubing length, runner diameter, and merge collection efficiency. SOUL addressed this by refining the interface between the flange and primary tubes, using smooth-radius large-diameter bends, and implementing performance-oriented collectors with merge spikes for increased flow, response, and performance. The bespoke billet collector was designed from CAD to CNC for a no-compromise result, maximizing runner length and eliminating several welds for improved durability. Billet CNC head flanges allow for a more efficient transition from exhaust ports into the runners and add extra strength in a high-stress area, preventing cracking from repeated hard use during track days.

Construction

Each header set is assembled in-house in the USA from mandrel-bent, thick-wall 0.065-inch T304L stainless steel. Billet 304L stainless steel head flanges and the merge collector are precision-cut on a 5-axis CNC machine for the best possible exhaust flow and strength. Back-purged TIG welding ensures proper weld penetration and long-term durability, crucial for track use. Thick-gauge aluminum fixtures act as heat sinks during welding to prevent warpage of both the components and the fixtures, guaranteeing consistent fitment on every build.

Features

Billet CNC head flanges for efficient port-to-runner transition and crack resistance
Bespoke billet merge collector, CAD-to-CNC, maximizes runner length and eliminates welds
Smooth-radius large-diameter bends for increased flow
Performance-oriented collectors with merge spikes
Mandrel-bent, thick-wall 0.065-inch T304L stainless steel construction
Billet 304L stainless head flanges and merge collector precision-cut on 5-axis CNC
Back-purged TIG welding for proper weld penetration and long-term durability
Thick-gauge aluminum welding fixtures to prevent warpage
Assembled in-house in Willow Grove, PA
Backed by SOUL Performance lifetime warranty

Applications

Porsche 911 GT3: 997 | 2005-2013 | 3.6L / 3.8L F6
Porsche 911 GT3 RS: 997 | 2006-2011 | 3.6L / 3.8L F6

Notes

Designed for closed-course and race use
Professional installation is recommended

Frequently Asked Questions

What are the SOUL Performance 997 GT3 headers? The SOUL Performance 997 GT3 headers are competition headers built in-house for the Porsche 997 GT3 and GT3 RS. They feature billet CNC head flanges, a bespoke 5-axis CNC-machined billet merge collector, and smooth-radius large-diameter bends for increased flow, sharper response, and a more aggressive exhaust note from the naturally aspirated flat-six.
What makes the billet merge collector significant? The bespoke billet merge collector is designed from CAD to CNC for a no-compromise result. It maximizes runner length and eliminates several welds compared to traditional fabricated collectors, improving both performance and long-term durability.
How do the competition headers differ from the street headers? The competition headers are built without high-flow catalysts and are designed for maximum flow and performance in closed-course and race environments. The street headers retain high-flow catalysts for greater flow than factory without a check engine light, making them better suited for street and track day use.
Is an ECU tune required? A tune is not required to fit the competition headers. Many owners add a tune to maximize the performance gains.
Is professional installation recommended? Yes. We recommend installing the Competition 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 engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. 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 Competition Headers for 997 Porsche 911 GT3 / GT3 RS [POR.997GT3.COH]

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SOUL Performance Competition Headers for 997 Porsche 911 GT3 / GT3 RS

Development and Testing

Construction

Features

Applications

Notes

Frequently Asked Questions

About SOUL Performance

Reviews