SOUL Performance Street Package for 987.1 Porsche Boxster / Cayman

The SOUL Performance Products Street Package for the 987.1 Cayman and Boxster is engineered by enthusiasts to unlock performance and character where the factory system falls short. The OEM headers feature oversized catalytic converters, thin flanges, and restrictive primary tubing that limit flow, while the factory exhaust adds a secondary set of catalytic converters that further reduces output. SOUL’s Street Package addresses these bottlenecks in one complete, matched upgrade, pairing Long Tube Street Headers with the Performance Exhaust System for seamless compatibility. The headers use large, long primary tubes that merge into a smooth collector and an HJS catalytic converter to help reduce fumes and lower the likelihood of a check engine light, while the exhaust incorporates mandrel-bent over-axle piping and removes the secondary catalytic converters for a major increase in flow. Fortified, high-flow mufflers deliver a refined yet aggressive tone while keeping drone to a minimum, resulting in sharper throttle response and a more engaging flat-six experience.

Construction

• SOUL Performance’s precision-engineered headers are meticulously fabricated from T304L stainless steel and designed to maximize power gains through proven flow-focused details. Port-matched flanges, smooth-radius primary tubing, flow-optimized collectors, and integrated merge spikes work together to smooth exhaust flow into the collector and improve efficiency. Every set is rigorously quality-checked prior to shipping. Each system is constructed from mandrel-bent T304L stainless steel tubing and features mufflers with fortified casings for long-term durability.

HJS CATALYSTS:

• SOUL Performance uses some of the highest-quality catalytic converters available, selected for industry-leading flow and long-term durability. Efficient enough to meet strict EURO 3 emissions standards, they still provide increased exhaust flow while helping reduce the likelihood of a check engine light. The HJS HF design features premium double-foil winding for exceptional strength and durability.

Bolt On and Go

• Each SOUL Performance product is test-fit in a dedicated fixture to verify proper fitment, then foam packed to help ensure it arrives in perfect condition. Detailed installation instructions are included for a straightforward install that most DIY enthusiasts can complete.

Features

• HJS high-flow catalytic converter to reduce fumes and help prevent CEL
• T304L stainless steel construction with mandrel-bent over-axle piping
• Port-matched flanges, merge spikes, and flow-optimized collectors
• Fortified mufflers for refined aggressive sound with minimal drone
• Fixture-tested fitment, foam packed, with install instructions
• Straight or Slash Cut Single Wall Tips in Black Satin, Brushed, Signature Satin and Titanium

What’s Included

• SOUL Performance 987.1 Performance Exhaust System
• SOUL Performance 987.1 Long Tube Street Headers

Applications

• Porsche Boxster: 987.1 | 2005-2008 | 2.7L F6
• Porsche Boxster S: 987.1 | 2005-2008 | 3.2L F6, 3.4L F6
• Porsche Cayman: 987.1 | 2005-2008 | 2.7L F6
• Porsche Cayman S: 987.1 | 2005-2008 | 3.4L F6

Notes

• This package is not CARB certified and may not be legal for use on emissions controlled vehicles. Intended for off road use only.

About SOUL Performance

SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.