400 Cell Catted Down Pipes For Porsche 992 GT3 / GT3 RS
$4,499.99
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SKU:
POR.992.GT3RS.FFH.400C.BR
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400 Cell Catted Down Pipes For Porsche 992 GT3 / GT3 RS
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$4,499.99
Porsche 992 GT3 / GT3 RS – EPA-Compliant 400 Cell Catted Downpipes
Engineered for the 4.0L Naturally Aspirated Flat-Six • High-Flow • Compliant •
Introducing Our NEW 400 Cell EPA-Compliant Downpipes for 992 GT3
The Porsche 992 GT3 and GT3 RS are motorsport-derived machines built around a 9,000 RPM naturally aspirated flat-six. While the factory catalysts prioritize restriction and sound control, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce exhaust backpressure, improve high-RPM breathing, and enhance the engine’s unmistakable motorsport character — all while maintaining emissions compliance standards.
This upgrade preserves the integrity of the GT3 platform while allowing the engine to operate with greater efficiency and clarity at redline.
Why Upgrade to 400 Cell?
- EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
- Improved High-RPM Flow: Reduced restriction enhances top-end breathing and throttle precision.
- Enhanced Motorsport Character: Sharper, more defined exhaust note at elevated RPM.
- Track-Focused Performance: Optimized for spirited driving and circuit use without sacrificing reliability.
Engineering & Performance
- Optimized Flow Architecture: Designed to minimize backpressure while preserving catalyst efficiency.
- Mandrel-Bent Tubing: Smooth internal transitions for consistent exhaust velocity.
- Precision TIG Welding: Built to withstand extreme exhaust temperatures during sustained high-RPM operation.
- Direct OEM Bolt-On Installation: Utilizes factory mounting locations for seamless fitment.
- Engineered to Pair with Valvetronic Exhaust Systems
Sound Character
- Stock Exhaust + Downpipes: Noticeable increase in clarity and presence with improved high-frequency resonance.
- Valvetronic Exhaust + Downpipes: Maximum transformation — sharper transitions, heightened induction character, and a more race-inspired signature.
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 sustained high-RPM conditions
Allow your 992 GT3 to breathe as it was engineered to — precision performance, 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.
400 Cell Catted Down Pipes For Porsche 992 GT3 / GT3 RS
