Porsche Cayenne Turbo S/GT/GTS 400 Cell Catted Downpipes
$5,780.00
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SKU:
LAM.AUD.URUS.RSQ8.FF.400C.BR
In stock
Porsche Cayenne Turbo S/GT/GTS 400 Cell Catted Downpipes
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$5,780.00
Porsche Cayenne Turbo S / GT / GTS – EPA-Compliant 400 Cell Catted Downpipes
Precision Engineered for the 4.0L Twin-Turbo V8 • High-Flow Performance •
Introducing Our NEW 400 Cell EPA-Compliant Downpipes for Cayenne
The Porsche Cayenne Turbo platform is a masterclass in performance engineering. However, factory catalyst restrictions limit the full efficiency and character of its 4.0L twin-turbo V8. Our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce exhaust restriction, improve turbo response, and refine the exhaust note — all while maintaining emissions compliance standards.
Designed specifically for the Cayenne Turbo S, Turbo GT, and GTS, these downpipes elevate the driving experience while preserving the precision Porsche is known for.
Why 400 Cell?
- EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
- Improved Turbo Response: Reduced backpressure sharpens throttle input and mid-range delivery.
- Refined Yet Aggressive Sound: Deeper tone with enhanced clarity at higher RPM.
- Maintained Daily Comfort: Performance gains without sacrificing drivability.
Engineering & Performance
- Optimized Flow Design: Reduces restriction while preserving catalyst efficiency.
- Mandrel-Bent Tubing: Smooth internal transitions for consistent exhaust velocity.
- Precision TIG Welding: Built to endure high temperatures and sustained boost pressure.
- Direct OEM Bolt-On Installation: Utilizes factory mounting locations.
- Engineered to Pair with Valvetronic Exhaust Systems
Sound Profile
- Stock Exhaust + Downpipes: Noticeable increase in depth and presence without overwhelming cabin refinement.
- Valvetronic Exhaust + Downpipes: Sharper response, increased volume, and a more motorsport-inspired character while retaining Porsche composure.
Construction & Durability
- Premium high-grade stainless-steel construction
- High-temperature resistant 400 cell catalyst cores
- OEM-style sensor placement for proper operation
- Engineered for long-term reliability under high performance conditions
Elevate the performance and sound of your Porsche Cayenne — engineered with precision, starting at the source.
📩 Questions or ordering assistance? customerservice@valvetronic.com
- Brushed T304 Stainless Steel
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Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
- 304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
- Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
- Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
- Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
- Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
- Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
- Tip finish is covered by a 1-year limited warranty.
Warranty Terms
- Warranty coverage begins on the purchase date and applies only to the original purchaser.
- This warranty is not transferable or assignable at any time.
- Discoloration caused by heat, salt, brine, or other road treatments is not covered.
- Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.
Porsche Cayenne Turbo S/GT/GTS 400 Cell Catted Downpipes
