The SOUL Long Tube Street Headers are designed for Porsche 981 Boxster and Cayman owners looking to improve exhaust flow, throttle response, and naturally aspirated flat-six sound while retaining catalytic converters. Combining long-tube runner geometry with large, free-flowing catalysts, the system provides a more performance-oriented exhaust path without moving to a fully catless configuration.
SOUL developed the headers specifically around the 981 platform, using 2-inch primary runners and appropriately sized collectors to improve exhaust flow. The design was optimized around the 3.4L flat-six while also providing meaningful improvements for the 2.7L engine.
Each header incorporates a SOUL-designed, U.S.-produced 300-cell catalytic converter featuring a custom-specified precious-metal catalyst coating and triple metal-matrix core. This allows the Street Headers to reduce restriction compared with the factory assemblies while retaining catalytic converters and, according to SOUL, operating without triggering a check engine light.
Port-matched flanges, smooth-radius primary tubing, long-tube runner geometry, and performance-oriented collectors work together to create a smoother exhaust path from the cylinder heads through the catalysts. The result is a freer-revving, more responsive flat-six with increased exhaust character while retaining a more street-oriented configuration than SOUL's catless Competition Headers.
Fits 2013–2016 Porsche 981 Boxster and Cayman models
Compatible with both 2.7L and 3.4L naturally aspirated flat-six engines
Long-tube header design developed specifically for the Porsche 981 platform
Features 2-inch primary runners
Runner and collector sizing optimized around the 3.4L engine while also providing performance benefits for the 2.7L
Retains catalytic converters for a more street-oriented configuration than SOUL Competition Headers
Utilizes SOUL-designed, U.S.-produced 300-cell high-flow catalytic converters
Catalysts feature a custom-specified precious-metal coating and triple metal-matrix core
Designed to improve exhaust flow, throttle response, performance, and naturally aspirated flat-six sound
Designed by SOUL to provide increased exhaust flow without triggering a check engine light
Port-matched flanges provide a smooth transition from the cylinder head into the primary runners
Smooth-radius primary tubing helps minimize unnecessary exhaust restriction
Performance-oriented collectors optimize the transition from the individual primary tubes into the remainder of the exhaust system
Constructed from T304L stainless steel
Back-purged TIG welded for proper weld penetration, strength, and long-term durability
Direct bolt-on installation
Each set is fixture-tested prior to shipment to help ensure accurate fitment
Thorough installation instructions included
Optional SOUL copper header gasket set available
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
The SOUL Long Tube Street Headers retain 300-cell high-flow catalytic converters and are designed for owners looking for improved exhaust flow, response, and flat-six sound while maintaining a catted exhaust configuration.
The SOUL Competition Headers eliminate the catalytic converters entirely for a less restrictive exhaust path, greater weight reduction, and a substantially more aggressive exhaust note.
For owners who primarily drive their 981 on the street and want a significant exhaust upgrade without moving to a fully catless configuration, the Long Tube Street Headers provide the more refined solution.
SOUL specifically designed the 300-cell catalytic converters and catalyst coating used in these headers to provide increased exhaust flow without triggering a check engine light under normal operating conditions.
An ECU tune is not required for installation. However, an appropriate performance calibration may allow the engine to take additional advantage of the improved exhaust flow when combined with other modifications.
A SOUL copper header gasket set can be added for customers replacing worn factory gaskets or who prefer a reusable, high-quality gasket solution.
The copper gasket set is available as a $65 option with the headers.
These headers retain catalytic converters; however, the product is not CARB certified and may not be legal for use on emissions-controlled vehicles. SOUL identifies the product as intended for off-road use.
Customers are responsible for ensuring compliance with all applicable local, state, and federal regulations before installation or use.
The SOUL Long Tube Street Headers are designed for Porsche 981 Boxster and Cayman owners looking to improve exhaust flow, throttle response, and naturally aspirated flat-six sound while retaining catalytic converters. Combining long-tube runner geometry with large, free-flowing catalysts, the system provides a more performance-oriented exhaust path without moving to a fully catless configuration.
SOUL developed the headers specifically around the 981 platform, using 2-inch primary runners and appropriately sized collectors to improve exhaust flow. The design was optimized around the 3.4L flat-six while also providing meaningful improvements for the 2.7L engine.
Each header incorporates a SOUL-designed, U.S.-produced 300-cell catalytic converter featuring a custom-specified precious-metal catalyst coating and triple metal-matrix core. This allows the Street Headers to reduce restriction compared with the factory assemblies while retaining catalytic converters and, according to SOUL, operating without triggering a check engine light.
Port-matched flanges, smooth-radius primary tubing, long-tube runner geometry, and performance-oriented collectors work together to create a smoother exhaust path from the cylinder heads through the catalysts. The result is a freer-revving, more responsive flat-six with increased exhaust character while retaining a more street-oriented configuration than SOUL's catless Competition Headers.
Fits 2013–2016 Porsche 981 Boxster and Cayman models
Compatible with both 2.7L and 3.4L naturally aspirated flat-six engines
Long-tube header design developed specifically for the Porsche 981 platform
Features 2-inch primary runners
Runner and collector sizing optimized around the 3.4L engine while also providing performance benefits for the 2.7L
Retains catalytic converters for a more street-oriented configuration than SOUL Competition Headers
Utilizes SOUL-designed, U.S.-produced 300-cell high-flow catalytic converters
Catalysts feature a custom-specified precious-metal coating and triple metal-matrix core
Designed to improve exhaust flow, throttle response, performance, and naturally aspirated flat-six sound
Designed by SOUL to provide increased exhaust flow without triggering a check engine light
Port-matched flanges provide a smooth transition from the cylinder head into the primary runners
Smooth-radius primary tubing helps minimize unnecessary exhaust restriction
Performance-oriented collectors optimize the transition from the individual primary tubes into the remainder of the exhaust system
Constructed from T304L stainless steel
Back-purged TIG welded for proper weld penetration, strength, and long-term durability
Direct bolt-on installation
Each set is fixture-tested prior to shipment to help ensure accurate fitment
Thorough installation instructions included
Optional SOUL copper header gasket set available
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
The SOUL Long Tube Street Headers retain 300-cell high-flow catalytic converters and are designed for owners looking for improved exhaust flow, response, and flat-six sound while maintaining a catted exhaust configuration.
The SOUL Competition Headers eliminate the catalytic converters entirely for a less restrictive exhaust path, greater weight reduction, and a substantially more aggressive exhaust note.
For owners who primarily drive their 981 on the street and want a significant exhaust upgrade without moving to a fully catless configuration, the Long Tube Street Headers provide the more refined solution.
SOUL specifically designed the 300-cell catalytic converters and catalyst coating used in these headers to provide increased exhaust flow without triggering a check engine light under normal operating conditions.
An ECU tune is not required for installation. However, an appropriate performance calibration may allow the engine to take additional advantage of the improved exhaust flow when combined with other modifications.
A SOUL copper header gasket set can be added for customers replacing worn factory gaskets or who prefer a reusable, high-quality gasket solution.
The copper gasket set is available as a $65 option with the headers.
These headers retain catalytic converters; however, the product is not CARB certified and may not be legal for use on emissions-controlled vehicles. SOUL identifies the product as intended for off-road use.
Customers are responsible for ensuring compliance with all applicable local, state, and federal regulations before installation or use.
