SOUL Bolt-On X-Pipe With Tips, SHORT. Porsche 987.1 Boxster / Cayman › POR.9871.XT.

The SOUL Performance Bolt-On X-Pipe with Exhaust Tips is a premium aftermarket exhaust outlet upgrade designed 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  

Developed for owners who want to enhance the appearance and sound of their Porsche without replacing the complete exhaust system, this product combines a precision-cast stainless steel X-pipe with a choice of premium exhaust tips.

It replaces the factory T-shaped exhaust outlet section with a smoother, more efficient X-shaped gas-flow arrangement.

Unlike a complete performance exhaust system, this product retains the vehicle's existing compatible rear silencers and does not require replacement of the exhaust manifolds or catalytic converters.

The original Porsche 987.1 outlet design uses a T-shaped junction where exhaust gases from the left and right rear silencers meet before passing through the exhaust tips.

SOUL Performance developed its X-pipe to provide a smoother internal path for these exhaust gases, helping reduce turbulence and allowing exhaust pulses to combine more efficiently.

The result is a subtle but noticeable improvement in exhaust tone, with a smoother, more refined and sportier flat-six sound.

What This Product Does:
The SOUL Performance Bolt-On X-Pipe forms the final exhaust gas junction between the rear silencers and exhaust tips.

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

After passing through the silencers, the gases flow into the central exhaust outlet section.

The SOUL X-pipe replaces the original T-shaped outlet arrangement with a smoother X-shaped junction.

Its main functions include:

1. Improves Exhaust Gas Flow

The cast X-shaped junction allows exhaust gases from the two sides of the system to combine more smoothly.

This is intended to reduce unnecessary turbulence compared with the original T-shaped outlet section.

2. Smooths Exhaust Pulses

Exhaust gases travel through the exhaust in a series of pressure pulses.

The X-pipe allows these pulses to interact through its internal passage, influencing the resulting exhaust sound and gas flow characteristics.

3. Enhances Exhaust Sound

The X-pipe can produce a smoother, fuller and more refined flat-six exhaust note.

The change is generally more subtle than replacing the complete rear exhaust or installing aftermarket headers.

4. Maintains Existing Rear Silencers

The product works with compatible existing rear silencers.

It does not require a complete exhaust system upgrade.

5. Retains Factory PSE Functionality

On vehicles equipped with Porsche Sport Exhaust, the X-pipe can be installed while retaining the original compatible PSE exhaust system and valve operation.

The X-pipe itself does not contain exhaust valves.

6. Improves Rear-End Styling

The selection of exhaust tips allows owners to change the appearance of the original Porsche exhaust outlets.

Different lengths, cuts and finishes can create a more discreet or more aggressive rear appearance.

7. Supports Exhaust Efficiency

The smoother outlet junction is intended to reduce unnecessary flow resistance.

SOUL suggests this may support minor improvements in engine performance and cruising efficiency, although no specific gains are guaranteed.

8. Provides Corrosion Resistance

The cast T304L stainless steel X-pipe offers durability against moisture, road salt and repeated heating and cooling.

9. Allows Straightforward Installation

The X-pipe is designed as a direct bolt-on replacement for the compatible factory exhaust tip section.

No cutting or welding is normally required.

How Does The X-Pipe Improve Exhaust Flow:
The original Porsche 987.1 exhaust outlet uses a T-shaped junction.

In this arrangement, the exhaust gas streams from the left and right silencers meet at the central outlet.

The change in gas direction can create turbulence.

SOUL Performance replaces this arrangement with a precision-cast X-shaped section.

The smoother intersection helps exhaust gases combine and move towards the outlet tips more efficiently.

This can provide three principal benefits:

• A smoother exhaust gas path.
• A more refined exhaust tone.
• Reduced turbulence at the exhaust outlet junction.

The X-pipe does not fundamentally alter the engine's exhaust manifolds, catalytic converters or rear silencer design.

It is therefore best described as an exhaust outlet flow and styling upgrade, rather than a complete performance exhaust replacement.

Why Upgrading Matters:

1. Improved Exhaust Outlet Flow

The original T-shaped outlet arrangement can create turbulence as exhaust gases merge.

The SOUL X-pipe provides a smoother junction designed to improve gas movement.

2. Refined Flat-Six Sound

The X-pipe can create a smoother and slightly sportier exhaust note without the dramatic volume increase associated with a full race exhaust.

This makes it appealing to owners who want a modest acoustic improvement.

3. Enhanced Rear-End Appearance

The original Porsche exhaust tip appearance may not suit every owner's preference.

SOUL provides alternative tip designs that can create a more modern, premium or performance-inspired appearance.

4. Choice of Exhaust Tip Lengths

The long and short single-wall options allow owners to select the degree of exhaust tip projection.

Short tips offer a discreet look, while long tips create a more prominent appearance.

5. Stainless Steel Durability

The cast T304L stainless steel X-pipe provides corrosion resistance and durability under exhaust operating temperatures.

6. Retains Factory Exhaust Refinement

Unlike replacing the complete rear exhaust system, this upgrade retains the original compatible silencers.

This allows owners to preserve the general comfort and noise characteristics of their existing system.

7. Compatible with Porsche Sport Exhaust

The X-pipe can be used on compatible PSE-equipped vehicles without removing the factory exhaust valve system.

8. No Exhaust Valve Controller Required

The X-pipe does not incorporate its own valves or electronic controller.

It operates as a passive exhaust component.

9. Direct Bolt-On Installation

The product is designed to replace the original tip section using compatible exhaust mounting points.

It does not normally require welding.

10. More Economical Than a Complete Exhaust Upgrade

For owners primarily seeking improved exhaust tip appearance and a modest sound change, the X-pipe provides an alternative to replacing the complete rear exhaust assembly.

11. Manufacturer Lifetime Warranty

SOUL Performance covers the product under its lifetime warranty for street and track use, subject to the manufacturer's terms.