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Porsche Cayenne 958 4.8T Heat Shield Downpipe Exhaust System(2010-2017)
Porsche Cayenne 958 4.8T Heat Shield Downpipe Exhaust System(2010-2017)
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Unleash Maximum Turbo Spool & Thermal Efficiency — CEES Porsche Cayenne 958 4.8T Heat Shield Downpipe System
Maximize exhaust gas velocity, sharpen turbocharger spool, and protect your engine bay with the CEES High-Flow Heat-Shielded Sport Downpipe Exhaust System, engineered exclusively for the Porsche Cayenne 958 4.8T Turbo & Turbo S (2010–2017). Replacing the highly restrictive factory catalytic converters directly downstream of the twin turbochargers, this race-proven catless downpipe drastically reduces backpressure while our integrated embossed stainless steel thermal heat shield lowers under-hood temperatures. Every order includes 2 complimentary O2 sensor spacers (CEL Fix) to prevent check engine lights on your twin-bank V8.
🚀 Engineering Highlights
- Integrated Thermal Heat Shielding: Encased in high-grade embossed stainless steel heat shielding with high-density thermal insulation, significantly reducing under-hood radiant heat and protecting sensitive engine wiring, hoses, and turbo components.
- Drastic Backpressure Reduction: Smooth mandrel-bent oversized stainless steel tubing accelerates exhaust gas evacuation directly from the turbo turbine outlets, unlocking rapid boost onset and increased horsepower and torque across the powerband.
- Complimentary CEL Fix Included: Includes 2 complimentary O2 sensor spacers (CEL Fix) designed specifically for the twin-bank V8 configuration to minimize the chance of triggering catalytic efficiency check engine lights.
- Track-Grade T304 Stainless Steel: Handcrafted from premium heat-resistant T304 stainless steel with precision TIG welds for extreme thermal tolerance and long-term corrosion resistance.
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3D Laser-Scanned OEM Fitment: 100% bolt-on replacement utilizing factory turbocharger flanges and bracket locations without requiring cutting or modification.
📊 Technical Specifications
| Fitment | • 2010–2017 Porsche Cayenne Turbo (4.8L Twin-Turbo V8) • 2012–2017 Porsche Cayenne Turbo S (4.8L Twin-Turbo V8) |
| Chassis Compatibility | Porsche Cayenne 958 (Fits both 958.1 & 958.2 4.8T platforms) |
| Engine | 4.8L Twin-Turbocharged V8 |
| Product Type | High-Flow Heat-Shielded Sport Downpipe (Pair — Left & Right Banks) |
| Configuration | Catless / Decat High-Flow Racing Downpipe with Integrated Thermal Heat Shield |
| Material | Aerospace-Grade T304 Stainless Steel with Embossed Thermal Insulation Shielding |
| CEL Protection | Includes 2 complimentary O2 sensor spacers (CEL Fix) |
| Installation | 100% bolt-on installation allows a return to stock at any time. (Reuses factory outlets) |
| Place of Origin | Guangdong, China (Direct Manufacturer) |
| Warranty | 1 Year Limited Warranty against manufacturing defects |
| What's Included | Left & right heat-shielded downpipes, 2x O2 sensor spacers (CEL Fix), high-temp gaskets, and mounting hardware |
✨ 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 catless downpipes trigger a Check Engine Light (CEL)?
Removing factory primary catalytic converters can cause catalytic efficiency error codes on the secondary oxygen sensors. To resolve this, CEES includes 2 complimentary O2 sensor spacers (CEL Fix) with every twin-bank V8 downpipe order to pull the secondary sensors out of direct gas flow and prevent CEL warnings.
2. Why is thermal heat shielding important for the Cayenne 958 4.8T?
The 4.8L Twin-Turbo V8 engine bay generates intense thermal loads. Our integrated embossed stainless steel heat shield retains heat inside the exhaust stream—accelerating exhaust gas velocity while dramatically dropping ambient under-hood temperatures to protect surrounding plastics, hoses, and wiring.
3. Is cutting or welding required during installation?
No. These downpipes are engineered to match factory 3D-scanned OEM turbo flange dimensions across all 2010–2017 Cayenne 958 Turbo models. 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 design, laser-scan, bend, and hand-weld every exhaust component in our factory with rigorous quality inspection.
