Valvetronic Designs 2022-2025 Porsche 718 GT4 RS / Spyder RS Valved Sport Exhaust System
or as low as $374.92/mo with Affirm
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VALVETRONIC DESIGNS
Valvetronic Designs Valved Sport Exhaust System for Porsche 718 GT4 RS / Spyder RS
The 992 GT3's Flat-Six in a Mid-Engine Chassis — Now With the Voice It Deserves
The Porsche 718 GT4 RS and Spyder RS occupy a singular position in the sports car world — the only mid-engine production Porsches powered by the legendary 4.0-liter naturally aspirated flat-six derived directly from the 992 GT3. With 493 horsepower channeled through a mid-mounted configuration, these machines deliver a driving experience that rivals dedicated race cars in steering precision, chassis balance, and mechanical engagement. But Porsche's noise compliance engineering imposes the same acoustic constraints found across the 718 lineup, leaving the flat-six's most compelling frequencies trapped behind restrictive muffler chambers that dull the very character that makes the GT4 RS special.
The Valvetronic Designs 718 GT4 RS Valvetronic exhaust is constructed entirely from Grade 5 titanium, with every component precision TIG welded for aerospace-grade structural integrity. At just 11.8 pounds, the system achieves a dramatic weight reduction that matters profoundly in a mid-engine chassis where every ounce affects rotational balance. A large cross-section X-pipe balances exhaust pulses between cylinder banks, creating a smoother, sharper, and more exotic high-pitched tone that transforms the flat stock sound into something truly extraordinary.
Available in rear-section-only, over-axle-only, or complete full-system configurations, the Valvetronic system offers titanium over-axle pipes for maximum volume impact and a valved rear section for on-demand sound management — giving drivers precise control over the acoustic experience without sacrificing a single decibel of potential.
Sound & Control
Valves Open
With valves commanded open, the 718 GT4 RS transforms from fast road car to howling motorsport machine. The 4.0-liter flat-six's individual cylinder pulses become audible and the high-pitched exotic tone carries with startling clarity from the mid-mounted engine bay. Every downshift delivers a bark, every upshift a sharp crack — this is the GT4 RS at its most primal.
Valves Closed
Close the valves and the GT4 RS returns to a state of refined composure. Cabin noise drops to civilized levels suitable for daily commuting and extended highway cruising, with zero drone and no resonant frequencies intruding on conversation. The Spyder RS becomes a genuine open-air grand tourer — top down, valves closed, and nothing but wind noise for company.
Construction & Engineering
- Material: Grade 5 Titanium throughout
- System Weight: 11.8 lbs total
- Center Section: Large cross-section X-pipe for pulse balancing
- Valve System: Vacuum-actuated exhaust valves with electronic controller
- Fabrication: Precision TIG welded, fully mandrel bent
- Configurations: Rear section only, over-axle only, or complete system
Specifications
Fitment
| Year | Make | Model | Variant |
|---|---|---|---|
| 2022+ | Porsche | 718 Cayman GT4 RS | 982 |
| 2022+ | Porsche | 718 Spyder RS | 982 |
Sound & Video
Installation
What’s Included
- Valvetronic Designs Grade 5 titanium valved rear section (or full system per configuration)
- Large cross-section X-pipe
- Vacuum exhaust valve assemblies
- Electronic valve controller
- All required gaskets, clamps, and mounting hardware
- Installation instructions
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