FABSPEED SPORT HEADERS FOR 996 PORSCHE 911 GT3
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Fabspeed Sport Headers for 996 Porsche 911 GT3
Fabspeed’s Sport Headers for 996 Porsche 911 GT3 work on the one part of the exhaust that everything downstream depends on. A centre section or a set of tips can only pass along what the headers hand them, and the factory manifolds on a 996 GT3 were built to a cost and a noise target rather than to a flow figure. Fabspeed hand-builds these in Fort Washington, Pennsylvania from one-piece CNC mandrel-bent primary tubes running into F1-style merge collectors, all in T304L stainless, and the result is more power and torque across the rev range rather than a spike at the top. The sound changes character as much as volume: a mild rise over standard, and a noticeably smoother, better-resolved flat-six note. For an owner building a 996 GT3 properly, this is where the work starts.
Features
- One-piece CNC mandrel-bent primary tubes for maximum flow and no intermediate welds
- F1-style merge collectors for optimised exhaust scavenging
- Improves power and torque throughout the rev range rather than only at the top
- Mandrel-bent T304L stainless steel construction
- Hand built by Fabspeed in Fort Washington, Pennsylvania
- Mild volume increase over the factory headers with a smoother, better-resolved flat-six note
- Level-1 install difficulty; DIY bolt-on with no cutting or welding required
- Backed by the Fabspeed Lifetime Warranty
Applications
- Porsche 911 GT3: 996 | 1999-2005 | 3.6L F6
Notes
- These are headers only. They do not include or alter the mid-section, which is where the 996 GT3 carries its emissions hardware, and Fabspeed publishes no off-road restriction for them.
- To ensure a proper header seal, tighten all exhaust bolts to the OEM torque specification after the initial heat cycle
- Pair these with the Fabspeed Sport Cat X-Pipe for 996 Porsche 911 GT3 (FS.POR.996GT3.SCX) for a road-driven car, or the Fabspeed Competition X-Pipe (FS.POR.996GT3.CBX) for a car used at closed-course events
- Add Fabspeed XperTune Performance Software for 996 Porsche 911 GT3 (FS.POR.996GT3.ET) so the calibration is written to the flow the headers actually provide
- Rear-section options for this chassis include the Maxflo Performance Exhaust System, the Muffler Bypass Pipes and the Supercup Exhaust System
- For sound-limited circuits, the Fabspeed Competition Muffler Outlets w/ Adjustable Turndowns (FS.POR.996GT3.CMO) let you aim the exhaust away from the meter
- Browse the full Fabspeed range for the 996 GT3
- These headers are built to order. We will confirm lead time and order details after you order.
Frequently Asked Questions
- What do the Sport Headers for 996 GT3 actually change? They replace the factory manifolds with one-piece CNC mandrel-bent primaries running into F1-style merge collectors, all in T304L stainless. Because headers sit closest to the combustion event, freeing flow there improves power and torque across the rev range and lets every part downstream work with more than the factory manifolds were passing along.
- Do these include Sport Cats? No, and that is a real difference from the 997 versions of this product. On the 996 GT3 the emissions hardware sits in the mid-section rather than in the headers, which is why Fabspeed sells separate Sport Cat and Competition X-pipes for this chassis. These headers are headers, and Fabspeed publishes no off-road restriction for them.
- What is an F1-style merge collector and why does it matter? It brings the primary tubes together at a shallow, controlled angle so each cylinder’s exhaust pulse helps draw out the next rather than colliding with it. That scavenging effect is why a well-designed collector produces gains across the range instead of trading away low-end response for a peak figure.
- Do I need a tune to run them? Not required, but recommended. The headers deliver their gain on their own, and a calibration written for them extracts more, because a file can only take advantage of flow that actually exists. Fabspeed’s XperTune Performance Software for this chassis is written to whatever hardware you declare on their information form.
- How difficult is the installation? It is a DIY-grade job at Level-1 install difficulty, with no cutting, no welding and no fabrication required. One point matters: after the first heat cycle, go back and tighten all exhaust bolts to the OEM torque specification, which is what ensures a lasting seal at the header flanges.
- Which 996 models do they fit? All 996 GT3 cars with the 3.6L flat-six from 1999 to 2005, covering both the early and later versions. They are specific to the GT3’s engine and exhaust layout, so 996 Carrera models and later 997 cars need the headers built for their own chassis rather than these.
About Fabspeed
Fabspeed Motorsport builds its exhaust, intake and software products in a 26,000 square foot facility in Fort Washington, Pennsylvania, a shop that regularly hosts Porsche Club of America, Ferrari, McLaren and Lamborghini club events. Every system is developed in house, from design and engineering through dyno testing, street trials and racing. Fabspeed works alongside race engine builders and tuners in Italy, Germany and the United States, and fabricates its systems from aerospace-grade austenitic stainless steel, titanium and carbon fiber.
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- Please review the product dimensions carefully to ensure the right fit for your space
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- Some items may require simple assembly upon delivery
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.
FABSPEED SPORT HEADERS FOR 996 PORSCHE 911 GT3
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