SOUL Competition Exhaust Package, Titanium Tips. Porsche 981 GT4 / Boxster Spyder / Clubsport › POR.GT4.COPKG.SLTT

The SOUL Performance Competition Package is a premium aftermarket exhaust upgrade developed specifically for the Porsche 981 Cayman GT4, Boxster Spyder and GT4 Clubsport models manufactured between 2015 and 2016.

Fits:

• Porsche Boxster 981 Spyder 3.8L 2016
• Porsche Cayman GT4 3.8L 2015-16  

• Valved Exhaust System
• Competition Headers

The package replaces the original exhaust manifold and catalytic converter assemblies, together with the factory rear exhaust system, to provide a high-flow exhaust arrangement from the cylinder heads to the exhaust outlets.

Unlike a conventional rear silencer upgrade, the Competition Package addresses both the exhaust gas collection and final exhaust delivery stages.

The Competition Headers incorporate carefully designed runners, smooth-radius tubing, port-matched flanges and optimised collectors to improve exhaust gas movement away from the engine.

These headers eliminate the original catalytic converters, reducing exhaust restriction and creating a freer-flowing exhaust path.

The accompanying Valved Exhaust System uses mandrel-bent stainless steel tubing, specially developed silencers and electronically operated exhaust valves.

With the exhaust valves closed, gases pass through the sound-absorbing silencers, producing a controlled exhaust note intended to minimise unwanted cabin drone.

With the valves open, exhaust gases follow a more direct flow path through the X-pipe and rear exhaust, creating a noticeably louder and more aggressive flat-six soundtrack.

This selectable operation makes it possible to enjoy different exhaust characteristics depending on the driving situation.

The system is manufactured using T304L stainless steel, selected for its durability, corrosion resistance and suitability for demanding exhaust conditions.

The Competition Package is designed for direct bolt-on installation on compatible vehicles, with manufacturer-supplied fitting instructions.

SOUL Performance reports third-party dynamometer testing showing significant performance gains when the package is combined with appropriate ECU tuning.

The result is a complete performance exhaust upgrade intended to enhance engine response, maximise exhaust flow potential and deliver a distinctive motorsport-inspired sound.

Ideal for Porsche enthusiasts seeking increased performance, improved exhaust character and a comprehensive exhaust upgrade for track-focused applications.

What This Product Does:
The Competition Package replaces major sections of the original Porsche exhaust system to improve exhaust flow and provide selectable exhaust sound characteristics.

The system consists of two main components.

1. SOUL Performance Competition Headers

The Competition Headers collect exhaust gases as they leave the engine's cylinder heads.

They replace the original manifold and catalytic converter assemblies with stainless steel headers designed to reduce exhaust restriction.

Their functions include:

• Directing exhaust gases away from the cylinder heads.
• Providing smoother exhaust runner geometry.
• Supporting improved exhaust scavenging.
• Reducing restrictions associated with the original catalyst assemblies.
• Supporting improved throttle response.
• Increasing engine performance potential.
• Enhancing the natural exhaust sound of the 3.8L flat-six engine.
• Maintaining the correct mounting arrangement for the compatible engine.

The headers use port-matched flanges, smooth-radius primary runners and optimised collectors to support efficient gas flow.

2. SOUL Performance Valved Exhaust System

The Valved Exhaust System receives exhaust gases from the headers and directs them through the rear exhaust.

It incorporates electronically operated valves that provide different sound and flow characteristics.

Its functions include:

• Directing exhaust gases towards the rear outlets.
• Providing selectable exhaust sound modes.
• Reducing unwanted drone when the valves are closed.
• Producing a more aggressive sound when the valves are open.
• Supporting efficient flow through the rear exhaust.
• Maintaining compatibility with the appropriate factory valve-control system.
• Providing a durable stainless steel silencer arrangement.
• Enhancing the vehicle's rear appearance through custom exhaust tips.

 


Why Upgrading Matters:
The SOUL Performance Competition Package provides a comprehensive exhaust upgrade for drivers seeking increased performance and a more engaging engine sound.

Improved Exhaust Flow

• The Competition Headers remove the original catalytic converters and use optimised exhaust runners and collectors.
• This reduces restrictions in the exhaust path and supports improved engine breathing.

Increased Performance Potential

SOUL Performance reports third-party testing on a Dyno Dynamics dynamometer.

The manufacturer states that testing produced:

• Approximately 40 wheel horsepower improvement in a tuned configuration.
• Approximately 20 wheel horsepower incremental improvement attributed to the Competition Headers after the ECU tune had been applied.

These gains relate to the tested vehicle and configuration.

Results will vary according to engine condition, ECU calibration and other modifications.

Improved Throttle Response

• The freer-flowing exhaust arrangement is intended to improve the engine's response to accelerator input.
• This can make the naturally aspirated flat-six feel more responsive during acceleration, particularly at higher engine speeds.

Enhanced Flat-Six Exhaust Sound

• The package is designed to reveal more of the engine's natural exhaust character.
• The Competition Headers and Valved Exhaust System work together to create a distinctive sound, particularly when the valves are open.

Selectable Exhaust Characteristics

• Unlike a permanently unrestricted rear exhaust, the valved system allows the driver to select between different sound modes.
• This offers additional flexibility for owners who use their vehicles in different driving environments.

Durable Stainless Steel Construction

• The headers and rear exhaust use T304L stainless steel.
• The construction is designed to withstand repeated heating and cooling cycles, exhaust vibration and demanding driving conditions.

Complete Exhaust Upgrade

• The package includes both Competition Headers and the Valved Exhaust System.
• This provides an integrated aftermarket solution rather than requiring separate component selection.

• The Competition Package is intended for drivers seeking a performance-oriented exhaust setup.
• Its catalyst-free construction and high-flow design make it particularly relevant to off-road and motorsport applications.

Manufacturer Warranty

• SOUL Performance offers a lifetime warranty for its exhaust components, subject to the manufacturer's published terms and conditions.