Porsche 911 (997.2) Carrera 3.6L / 3.8L Exhaust Headers (2009-2012)

Porsche 911 (997.2) Carrera 3.6L / 3.8L High-Flow Exhaust Manifold Headers

Maximize exhaust velocity and awaken the iconic flat-6 acoustic howl of your direct-injection Porsche with CEES High-Flow Exhaust Manifold Headers, engineered specifically for the 997.2 generation Carrera. Handcrafted from premium mandrel-bent T304 stainless steel with precision TIG welds, this system replaces restrictive factory manifold assemblies, drastically reducing backpressure at the cylinder head exhaust ports for faster throttle response and substantial mid-range to top-end power gains.

🚀 Engineering Highlights

• Engineered Specifically for 9A1 DFI Engine: Precision-matched to the unique cylinder head exhaust port geometry, flange angles, and bolt spacing of the 997.2 DFI engine (distinct from early 997.1 M96/M97 engines).
• Equal-Length Tuned Runner Architecture: Smooth mandrel-bent primary runners merge into high-velocity 3-into-1 merge collectors, equalizing exhaust gas pulses from both cylinder banks to eliminate backpressure turbulence.
• Catless & High-Flow Sport Catted Versatility: Available in unrestricted Catless Manifold configuration for pure race flow and raw acoustic volume, or high-flow 100-Cell / 200-Cell / 300-Cell metallic catalytic core options balancing high exhaust flow with odor filtration.
• Twin-Bank CEL Fix Spacers Included: To suppress check engine light triggers from high-flow or catless setups, CEES includes 2 complimentary O2 sensor spacers (CEL Fix) tailored for the dual-bank Porsche flat-6.
• 3D Laser-Scanned OEM Fitment: 100% bolt-on installation utilizing factory mounting points and mating directly with factory or aftermarket rear exhaust sections without cutting or welding.

📊 Technical Specifications

✨ Bespoke Your Build — Chat with Our Specialists on WhatsApp

• WhatsApp: +86 15626172519
• Email: cees-exhaust@qq.com

📦 Shipping & Lead Times

• 🛠️ Production Time: Built to order in 2–4 weeks (in-stock options ship in 6–12 business days)
• 🚚 Shipping: Premium express via DHL / FedEx / UPS — estimated 7–15 business days to your door
• 📦 Free shipping

FAQ

1. Will these headers fit a Porsche 997.1 (2004–2008)?

No. 997.1 (M96/M97 port-injected engine) and 997.2 (9A1 direct-injection engine) headers are completely different and not interchangeable. The cylinder head exhaust port angles, bolt spacing, and catalytic converter locations differ. For 997.1 Carrera models, please check our dedicated 997.1 headers listing.

2. Will installing these headers trigger a Check Engine Light (CEL)?

Because the factory 997.2 exhaust manifolds incorporate primary catalytic converters, upgrading to catless or high-flow sport catalytic converters can alter secondary O2 sensor readings. To prevent warning lights, CEES includes two complimentary O2 sensor spacers (CEL Fix) designed specifically for twin-bank flat-6 engines.

3. Is cutting or welding required during installation?

No. The headers are precision 3D-scanned and engineered to factory OEM dimensions. 100% bolt-on installation allows a return to stock at any time. (Reuses factory outlets).

4. Are you a direct manufacturer?

Yes — CEES Exhaust is a direct manufacturer based in Guangdong, China. We laser-scan, bend, and TIG-weld every exhaust component in our factory with rigorous quality inspection.