SOUL Valved Exhaust System. Porsche 987.2 Boxster / Cayman › POR.9872.VES.

The SOUL Performance Valved Exhaust System is a high-quality aftermarket sports exhaust upgrade specifically designed for Porsche 987.2 Boxster and Cayman models manufactured between 2009 and 2012.

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12  

The Porsche 987.2 Boxster and Cayman are known for their responsive engines, balanced chassis and distinctive flat-six engine sound.

SOUL Performance developed this valved exhaust to enhance the driving experience by providing a deeper, fuller exhaust note while retaining the flexibility to switch between refined and aggressive sound characteristics.

Unlike a conventional non-valved sports exhaust, the SOUL system features two distinct operating modes.

With the exhaust valves closed, exhaust gases are directed through specially developed silencers containing high-quality sound-absorbing material. This produces a more controlled exhaust tone and is designed to minimise unwanted cabin drone, particularly during steady motorway driving.

With the valves open, exhaust gases follow a more direct route through the 2.5-inch pipework, producing a noticeably louder and more aggressive flat-six soundtrack.

The system incorporates perforated passages that allow exhaust pulses to interact with the silencers, helping create a fuller and more rounded sound even when the valves are open.

Manufactured from mandrel-bent T304L stainless steel, the exhaust is designed for durability, corrosion resistance and efficient exhaust gas flow.

The reinforced silencer casings and strengthened mounting brackets are engineered to withstand repeated thermal cycles, exhaust vibration and demanding driving conditions.

SOUL Performance states that its exhaust weighs approximately 30 lb, compared with 35 lb for the equivalent factory exhaust components, providing a weight saving of approximately 5 lb (2.2 kg).

A key advantage is its compatibility with vehicles both with and without factory Porsche Sport Exhaust (PSE).

On PSE-equipped vehicles, the SOUL exhaust can use the existing factory exhaust valve control arrangement.

For vehicles without PSE, SOUL includes a valve controller kit that allows the driver to operate the exhaust valves using a remote control.

The controller kit can also be installed on PSE-equipped vehicles to provide manual valve override.

A variety of premium exhaust tip styles and finishes allows owners to personalise the rear appearance of their Porsche.

Available options include 321 stainless steel exhaust tips and lightweight single-wall titanium tips.

Each system is quality-checked and fixture-tested before dispatch to ensure consistent installation fitment.

Designed as a direct bolt-on replacement for the compatible original rear exhaust, the kit includes installation instructions and specified mounting hardware.

Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's terms, this Valved Exhaust System is an ideal upgrade for Porsche owners seeking improved exhaust sound, selectable driving characteristics, reduced weight and durable stainless steel construction.

What This Product Does:
The SOUL Performance Valved Exhaust System directs combustion gases through the rear exhaust while allowing the driver to change the exhaust gas flow path and resulting sound.

During engine operation, exhaust gases leave the cylinder heads, pass through the exhaust manifolds and catalytic converters, and enter the rear exhaust system.

The SOUL exhaust then routes these gases through its stainless steel pipework and silencers before they exit through the rear exhaust tips.

The position of the exhaust valves determines the path taken by the gases.

Its main functions include:

• Directing exhaust gases: Carries combustion gases from the upstream exhaust components to the rear outlets.
• Providing selectable exhaust sound: Allows quieter and louder exhaust characteristics.
• Reducing unwanted drone: Uses sound-absorbing silencers to minimise low-frequency cabin resonance.
• Enhancing engine sound: Produces a deeper and more aggressive flat-six exhaust note.
• Supporting efficient exhaust flow: Uses mandrel-bent stainless steel tubing and a more direct open-valve flow path.
• Maintaining driver control: Allows the exhaust sound to be selected using the appropriate factory or supplied controller.
• Improving cruising refinement: Provides a quieter exhaust configuration for steady driving.
• Enhancing spirited driving: Delivers a stronger exhaust note during acceleration and high-RPM operation.
• Reducing exhaust weight: Offers a manufacturer-reported 5 lb saving over the original components.
• Maintaining durable construction: Uses corrosion-resistant stainless steel and reinforced mounting components.
• Enhancing rear-end styling: Offers different exhaust tip materials, styles and finishes.
• Supporting performance upgrades: Can complement compatible aftermarket exhaust headers.

1. Enhanced Flat-Six Exhaust Sound

The SOUL exhaust is designed to bring out more of the naturally aspirated Porsche engine's characteristic sound.

Drivers can enjoy a fuller and more aggressive exhaust note without permanently operating at maximum volume.

2. Selectable Exhaust Characteristics

The valved arrangement provides two different sound modes.

This makes the system more versatile than a permanently loud, non-valved exhaust.

3. Reduced Motorway Drone

The specially designed silencers help minimise unwanted low-frequency resonance.

SOUL specifically reports drone-free closed-valve motorway operation when combined with the original factory headers.

4. Improved Exhaust Flow Potential

The system uses mandrel-bent 2.5-inch over-axle pipework and a more direct exhaust path when the valves are open.

This is intended to support efficient exhaust gas movement.

5. Manufacturer-Reported Performance Improvements

SOUL Performance reports Dynojet testing on a Porsche 987.2 Cayman S fitted with its Valved Exhaust System and Long Tube Street Headers.

The manufacturer recorded maximum improvements of approximately:

8 wheel horsepower. 11 lb-ft of torque.

These gains were recorded around 4,100 RPM in the tested combined configuration.

Important: These figures should not be presented as guaranteed gains from the Valved Exhaust System alone.

6. Reduced Exhaust Weight

SOUL states that its Valved Exhaust System weighs approximately 30 lb compared with 35 lb for the factory components.

This represents a saving of approximately 5 lb (2.2 kg).

7. Compatibility with Factory PSE

Vehicles already equipped with Porsche Sport Exhaust can retain compatible factory-style valve operation.

The supplied SOUL controller can also offer manual override.

8. Valve Control for Non-PSE Vehicles

Vehicles without factory PSE can gain selectable exhaust sound using the supplied SOUL valve controller kit.

This is particularly useful for owners who want the versatility of a valved exhaust without an original factory PSE system.

9. Durable Stainless Steel Construction

The T304L stainless steel tubing offers corrosion resistance and durability under demanding exhaust operating temperatures.

10. Reinforced Exhaust Mounting

SOUL incorporates strengthened brackets and reinforced silencer casings.

These are designed to withstand repeated vibration and thermal cycling during road and track driving.

11. Premium Exhaust Tip Options

Owners can select different stainless steel and titanium exhaust tip styles.

This allows the rear appearance of the vehicle to be personalised.

12. Direct Bolt-On Installation

The system is designed for the original compatible mounting arrangement.

SOUL fixture-tests each exhaust and supplies the relevant installation instructions and hardware.

13. Manufacturer Lifetime Warranty

The exhaust components are covered by SOUL Performance's lifetime warranty for street and track use, subject to its published terms.