SOUL Competition Exhaust Package, Satin Black Tips. Porsche 987.1 Boxster / Cayman › POR.9871.COPKG.SLTB

The SOUL Performance Competition Package is a complete, high-performance exhaust upgrade designed specifically for Porsche 987.1 Boxster and Cayman models from 2005 to 2008.

Fits:

• Porsche Boxster 987 2.7L 2005-08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08  

Exhaust Package Includes:

• Performance Exhaust System
• Competition Headers

Developed for Porsche's naturally aspirated flat-six engines, this competition-focused package combines SOUL Performance Competition Headers with its non-valved Performance Exhaust System, providing a comprehensive upgrade from the cylinder-head exhaust outlets through to the rear tailpipes.

The package is designed to improve exhaust gas flow, reduce unnecessary restrictions, enhance engine responsiveness and produce a more powerful, distinctive flat-six soundtrack.

Unlike the SOUL Street Package, which incorporates high-flow catalytic converters, the Competition Package uses catalyst-free Competition Headers. The accompanying rear exhaust also removes the original secondary catalytic converters.

The result is a freer-flowing exhaust system developed for performance-oriented and motorsport applications.

What This Product Does:
The SOUL Performance Competition Package collects combustion gases leaving the engine and directs them through a less restrictive exhaust system towards the rear outlets.

Its two principal components work together to influence exhaust flow, sound and engine response.

1. Improves Exhaust Gas Flow

The Competition Headers use long primary runners, smooth bends and optimised collectors to reduce unnecessary flow restrictions.

The rear exhaust continues this arrangement with mandrel-bent tubing and freer-flowing silencers.

2. Removes Factory Catalytic Converters

The Competition Headers replace the factory primary catalytic converter assemblies.

The Performance Exhaust System removes the original secondary catalytic converters.

This creates a catalyst-free exhaust configuration designed for legally permitted motorsport applications.

3. Supports Exhaust Scavenging

The shape of the header runners and collectors influences the movement of exhaust pressure pulses.

Efficient exhaust scavenging can help the engine expel combustion gases and support cylinder filling during subsequent combustion cycles.

4. Enhances Engine Responsiveness

Reduced exhaust restriction may help the naturally aspirated engine respond more readily to accelerator input, especially during acceleration and higher-load operation.

Actual results depend on the engine's condition and complete vehicle configuration.

5. Produces an Aggressive Flat-Six Sound

The Competition Headers and performance rear silencers create a louder, fuller exhaust note than the original Porsche system.

The system is designed to emphasise the characteristic sound of the flat-six engine.

6. Controls Unwanted Resonance

Although the package is significantly more aggressive than the original exhaust, its rear silencers are designed to minimise unwanted drone.

However, the catalyst-free configuration may be noticeably louder than a catted sports exhaust, and a completely drone-free result is not guaranteed.

7. Reduces Exhaust Weight

Replacing the factory exhaust components with stainless steel performance headers and a lighter rear exhaust can reduce overall exhaust-system weight.

SOUL reports an approximate 15 lb (6.8 kg) saving for the Performance Exhaust System alone. A verified complete-package weight saving has not been established.

8. Provides Durable Construction

T304L stainless steel, strengthened silencer casings and reinforced mounting components are designed to withstand repeated thermal cycling and vibration.

Why Upgrading Matters:

1. Improved Exhaust Efficiency

The complete package is designed to reduce unnecessary restrictions throughout the exhaust system.

This can support more efficient gas movement and improved engine breathing.

2. Increased Performance Potential

By replacing the original restrictive manifold and catalyst assemblies, the system offers increased performance potential for the naturally aspirated flat-six engine.

SOUL's reported Dynojet figures demonstrate the output of its tested Cayman S, but they do not establish a guaranteed horsepower or torque increase.

3. Enhanced Throttle Response

The freer-flowing exhaust configuration may help the engine respond more readily during acceleration.

4. Stronger Flat-Six Exhaust Sound

The package provides a significantly more aggressive exhaust note than the original system.

Its characteristic sound is particularly noticeable during hard acceleration and high-RPM driving.

5. Comprehensive Exhaust Upgrade

Unlike replacing only the rear silencers, the Competition Package upgrades the exhaust manifolds and rear exhaust together.

The two components are designed by the same manufacturer to work as an integrated system.

6. Reduced Weight

The lightweight rear exhaust offers an approximately 15 lb saving over the factory rear assembly, according to SOUL.

Reducing unnecessary vehicle weight may be beneficial for track-focused applications.

7. Durable Stainless Steel Construction

The T304L stainless steel components provide corrosion resistance and durability under high operating temperatures.

8. Reinforced Rear Silencers

SOUL uses strengthened silencer casings and mounting components to help withstand vibration and thermal stress.

9. Reduced Mechanical Complexity

The non-valved exhaust does not require vacuum actuators, electronic controllers or switching mechanisms.

This provides a simpler exhaust arrangement than a selectable valved system.

10. Motorsport-Focused Design

The catalyst-free construction is intended for legally permitted off-road and motorsport use.

The SOUL Competition Headers, manufacturer reference POR.9871.COH, were previously approved as an alternative to standard headers under the 2020 PCA Spec Cayman class rules. Current eligibility must be checked against the applicable competition regulations.

11. Customisable Rear Appearance

The available exhaust tip styles and finishes allow owners to personalise the appearance of their Boxster or Cayman.

12. Manufacturer Warranty

SOUL Performance provides a lifetime warranty on eligible exhaust components, subject to its terms and conditions.