2022-2027 400 Cell Catted Down Pipes For Porsche 992 GT3 / GT3 RS

$4,499.99

Fits 2022–2027 Porsche 911 GT3 (992), Porsche 911 GT3 RS (992) · GT3, GT3 RS

Ships in 3–7 business days · Free shipping, tracked, anywhere in the US

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Fits: Porsche 911 2022-2027

Introducing Our NEW 400 Cell EPA-Compliant Headers 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

What's Included

Downpipe(s) & Hardware

Installation Notes

OEM Replacement

Specifications

Material: Stainless Steel
Outlet Quantity: 1

Vehicle Fitment Notes

2027 Porsche 911 GT3
2027 Porsche 911 GT3 RS
2026 Porsche 911 GT3
2026 Porsche 911 GT3 RS
2025 Porsche 911 GT3 4L
2025 Porsche 911 GT3 RS 4L
2024 Porsche 911 GT3 4L
2024 Porsche 911 GT3 RS 4L
2023 Porsche 911 GT3 4L
2023 Porsche 911 GT3 RS 4L
2022 Porsche 911 GT3 4L

Product Details

Brand: Valvetronic Designs
Part number: POR.992.GT3RS.FFH.400C.BR
Fitment: Porsche 911 2022-2027
Trims: GT3, GT3 RS
Warranty: Lifetime of Ownership Limited Warranty on Tubes and Welds; 3 Year Limited Warranty on Mufflers and Cats; 1 Year Limited Warranty on Electronics and Tip Finish

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Not sure it fits your car? Contact us before ordering by live chat or call/text (619) 706-9046 and we will confirm fitment for your trim.