SOUL Performance Exhaust System. Porsche 987.2 Boxster / Cayman › POR.9872.ESX.

The SOUL Performance Exhaust System is a premium aftermarket sports exhaust upgrade designed specifically for the 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  

Developed for Porsche's naturally aspirated flat-six engines, this system replaces the original rear exhaust assembly with a high-quality stainless steel exhaust featuring free-flowing pipework, performance silencers and a choice of premium exhaust tips.

The factory Porsche Boxster and Cayman exhaust is designed to balance engine performance, exhaust emissions, noise restrictions and everyday comfort. However, its relatively small pipework and substantial silencer assembly can limit the volume and character of the engine's natural exhaust note.

SOUL Performance developed this system to deliver a fuller, deeper and more engaging flat-six soundtrack without the excessive cabin resonance often associated with less refined aftermarket exhausts.

The system uses mandrel-bent T304L stainless steel tubing, designed to maintain a smooth exhaust gas path through bends and reduce unnecessary flow restriction.

Its specially developed silencers incorporate sound-absorbing materials intended to minimise undesirable drone and rasp, particularly during steady-speed cruising.

Unlike the manufacturer's separate Valved Exhaust System, this version does not incorporate electronically controlled exhaust valves.

Instead, it delivers a consistently sporty exhaust tone, similar in character to the open-valve mode of SOUL's valved system.

SOUL states that the exhaust produces a greater volume than the original Porsche Sport Exhaust (PSE) with its valves open, while retaining a refined exhaust character.

The construction incorporates reinforced silencer casings and strengthened exhaust mounting brackets, designed to provide durability during repeated heating and cooling cycles, everyday driving and demanding track use.

A choice of premium exhaust tips allows owners to personalise the rear appearance of their Porsche.

Available options include different styles and finishes of 321 stainless steel exhaust tips, alongside lightweight single-wall titanium tips.

The titanium tip option offers a weight saving of nearly one pound compared with the equivalent stainless steel tips, according to SOUL Performance.

Each exhaust assembly is quality-checked and tested in a dedicated fitting fixture before dispatch to ensure consistent installation fitment.

The system is designed for direct bolt-on installation and includes new high-grade hardware for the exhaust header flange connections, together with comprehensive installation instructions.

Backed by SOUL Performance's lifetime warranty, subject to the manufacturer's published terms, this exhaust is ideal for Porsche owners seeking a more distinctive flat-six sound, durable stainless steel construction and a simple, non-valved performance exhaust arrangement.

What This Product Does:
The SOUL Performance Exhaust System carries exhaust gases from the engine's upstream exhaust components through the rear exhaust assembly and directs them towards the exhaust outlets.

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

The gases then enter the rear exhaust, where the tubing and silencers influence exhaust flow and sound.

The SOUL system uses free-flowing stainless steel pipework and specially developed mufflers to balance strong exhaust sound with controlled resonance.

Its main functions include:

• Directing exhaust gases: Carries spent combustion gases towards the rear outlets.
• Supporting exhaust flow: Uses mandrel-bent tubing to provide a smooth gas path through the rear exhaust.
• Enhancing engine sound: Produces a deeper, fuller and more sporting flat-six exhaust note.
• Reducing unwanted drone: Incorporates silencers designed to minimise low-frequency cabin resonance.
• Controlling exhaust rasp: Helps reduce harsh or undesirable high-frequency exhaust sounds.
• Providing consistent exhaust character: Delivers a fixed sporting tone without selectable exhaust valves.
• Maintaining durable exhaust construction: Uses corrosion-resistant stainless steel and reinforced silencer housings.
• Supporting secure installation: Incorporates strengthened brackets designed for extended road and track use.
• Enhancing rear-end styling: Offers a selection of exhaust tip designs and finishes.
• Complementing performance upgrades: Designed to work with compatible aftermarket exhaust headers.
• Retaining compatible upstream components: Allows the original exhaust manifolds and catalytic converters to remain fitted.

SOUL Performance developed this system to provide a more aggressive exhaust note without the harshness or constant resonance of a completely unrestricted rear exhaust.

The manufacturer describes the sound as similar to its Valved Exhaust System with the valves open.

Owners may notice:

• A deeper exhaust tone at idle.
• A fuller flat-six soundtrack during acceleration.
• Increased sound intensity at higher engine speeds.
• More pronounced engine character during downshifts.
• A stronger exhaust note under heavy throttle.
• A more sporting sound than the standard Porsche rear exhaust.
• Reduced unwanted drone compared with less effectively silenced performance exhausts.
• A more refined tone than an unsilenced race exhaust.

The naturally aspirated engines fitted to Porsche 987.2 Boxster and Cayman models produce a distinctive flat-six soundtrack.

The SOUL exhaust is designed to emphasise this character, delivering a deeper and more engaging note during acceleration and high-RPM driving.

2. Consistently Sporting Exhaust Tone

Unlike a valved system, this exhaust does not require the driver to select a louder sound mode.

It provides its performance exhaust character whenever the engine is running.

3. Reduced Unwanted Drone and Rasp

SOUL's specially developed silencers aim to minimise unwanted resonance and harsh exhaust tones.

This provides a more refined alternative to unsilenced or poorly matched aftermarket systems.

4. Improved Exhaust Flow Potential

The system uses mandrel-bent stainless steel pipework designed to reduce unnecessary restrictions.

This may complement other appropriate performance modifications.

However, specific horsepower and torque gains have not been verified for this exhaust alone.

5. Durable Stainless Steel Construction

T304L stainless steel offers corrosion resistance and durability under repeated exhaust heating and cooling cycles.

The reinforced silencer casings are designed for long-term use.

6. Strengthened Exhaust Mounting Brackets

Exhaust mounts experience vibration, thermal expansion and mechanical stress during driving.

SOUL incorporates reinforced brackets intended to reduce the risk of cracking or failure during road and track use.

7. Simpler Non-Valved Design

The absence of exhaust valves reduces the number of moving components within the replacement rear exhaust.

This can appeal to owners who prefer a simpler performance exhaust configuration.

8. Premium Exhaust Tip Options

The system is available with a choice of stainless steel and titanium exhaust tips.

Different styles and finishes allow the owner to personalise the vehicle's rear appearance.

9. Direct Bolt-On Installation

The exhaust is designed for installation using the original compatible vehicle mounting arrangement.

SOUL quality-checks and fixture-tests the assembly before dispatch.

10. Compatibility with Performance Headers

The system is designed to work with suitable factory and aftermarket header arrangements.

Its silencers aim to control unwanted resonance, even when a freer-flowing upstream exhaust system is fitted.

11. Manufacturer Lifetime Warranty

SOUL Performance provides a lifetime warranty for its exhaust components, subject to the applicable warranty conditions.