Velocity Exhausts Porsche 718 GT4RS / Spyder RS Exhaust System

Porsche 718 Cayman GT4 RS / Spyder RS Exhaust System

Built for Porsche's most extreme naturally-aspirated 718 platform, this exhaust system is engineered to match the GT4 RS and Spyder RS's motorsport DNA. The factory 4.0L flat-six already screams — this system removes the restriction and lets it sing at full volume, sharpening throttle response and unlocking the raw, race-bred character these cars were built for.

Fitment

• Porsche 718 Cayman GT4 RS & 718 Spyder RS
• Direct bolt-on system — no cutting or permanent modifications required
• Precision-engineered for OEM mounting points and factory alignment
• Compatible with factory valve control system and drive modes (valved configurations)

Configuration Options

Build your system to match your goals — choose your pipe configuration, add-ons, material, and tip finish at checkout.

• System: F1 Catback, X Pipe Catback, or Race X Pipe Catback
• Add-On: System only, Race Pipes, 200 Cell Race Pipes, Race Pipes + Headers, or 200 Cell Race Pipes + Headers
• Valve Option: Valved or non-valved (varies by configuration)
• Material: Brushed T304 Stainless Steel or Grade 5 Titanium
• Tip Finish: Black, Brushed, or Burnt

Sound Character

The naturally-aspirated flat-six already has one of the best factory notes in the industry — this system takes it to a race-car level.

• X-Pipe / Catback Design: Sharpens the mid-to-high RPM wail and removes the factory's muffled edge, exposing the flat-six's raw induction and exhaust note.
• Overrun Character: Sharp pops and crackles on lift-off and downshifts, more pronounced with a headers upgrade.
• Overall Profile: High-revving, motorsport-pitched tone — closer to a GT4 Clubsport race car than a street-going Cayman.

Materials & Engineering

• Available in Brushed T304 stainless steel or aerospace-grade Grade 5 titanium for maximum strength-to-weight ratio
• Titanium configuration offers significant weight reduction vs. OEM exhaust system — critical on a car built around every gram
• Race Pipe and 200 Cell Race Pipe options for reduced backpressure and increased flow
• Header upgrades available for maximum flow gains and the most aggressive sound profile
• Precision TIG-welded for structural integrity and a clean, motorsport-grade finish
• Mandrel-bent tubing ensures optimal exhaust velocity and minimal restriction
• High heat resistance for sustained performance under track conditions

Performance Benefits

• Improved exhaust flow for enhanced horsepower and throttle response
• Reduced system weight for sharper handling and quicker acceleration (titanium configuration)
• Higher-RPM responsiveness suited to the GT4 RS/Spyder RS's motorsport-derived powerband
• Enhanced driver engagement through sharper sound and feedback, on-track and off

What's in the Box

• Full exhaust system, built to your selected configuration
• All required clamps, hardware, and gaskets
• Plug-and-play valve integration components (valved configurations)
• Installation guide

Why This System

The GT4 RS and Spyder RS were built to be Porsche's most track-focused road cars — but the factory exhaust still holds back the flat-six's full voice. This system removes that ceiling, delivering the sharper, more race-bred soundtrack these cars were always meant to have.

For owners who want their 718 to sound as extreme as it drives — this is the upgrade that defines the GT4 RS and Spyder RS.