Subaru WRX Performance Parts – EJ255/EJ257 Turbo Header & Up-Pipe Kit
Upgrade your turbocharged Subaru with this stainless steel header and up-pipe kit, designed as a performance-focused addition to compatible 2008–2014 Subaru WRX and WRX STI models. As part of our Subaru WRX Performance Parts collection, this kit combines a tubular exhaust header and up-pipe in a factory-style single-scroll turbo configuration for a practical upgrade to the EJ255 and EJ257 exhaust system.
Constructed from durable T304 stainless steel, the header and up-pipe assembly is designed to withstand repeated high-temperature exhaust cycles while providing excellent corrosion resistance. Mandrel-bent tubing helps maintain consistent internal diameter through bends, supporting smooth exhaust flow, while CNC-machined flanges provide accurate alignment and reliable sealing.
The polished stainless steel finish adds a clean performance appearance to the engine bay. TIG-welded construction provides dependable strength for demanding turbocharged applications, making this kit suitable for street performance builds, modified WRX vehicles, turbo upgrades, and other Subaru performance projects.
This Subaru WRX exhaust header and up-pipe kit is designed around the factory-style single-scroll turbo layout and is intended for bolt-on installation on compatible EJ255 and EJ257 applications.
Key Features
- Subaru WRX Performance Parts for EJ turbo applications
- Header and up-pipe kit for 2008–2014 Subaru WRX and WRX STI
- Designed for EJ255 and EJ257 2.5L turbo engines
- T304 stainless steel construction
- Polished stainless steel finish
- Factory-style single-scroll turbo layout
- Mandrel-bent exhaust tubing
- CNC-machined mounting flanges
- TIG-welded construction
- Designed for efficient exhaust flow
- Header manifold and up-pipe included
- Mounting hardware and gaskets included
- Factory-style mounting and routing
- Suitable for street performance and modified Subaru builds
Vehicle Fitment
This Subaru WRX exhaust system is designed for:
- 2008–2014 Subaru Impreza WRX 2.5L Turbo EJ255
- 2008–2014 Subaru Impreza WRX STI 2.5L Turbo EJ257
Performance Applications
This kit is an excellent option for enthusiasts building or upgrading:
- Subaru WRX performance cars
- WRX STI performance builds
- EJ255 turbo projects
- EJ257 turbo projects
- Subaru turbo upgrades
- Street performance vehicles
- Modified WRX and STI applications
- Custom Subaru exhaust systems
Header & Up-Pipe Design
The integrated header and up-pipe configuration is designed around the factory-style single-scroll turbo layout used by compatible EJ255 and EJ257 applications.
The mandrel-bent tubing helps maintain consistent exhaust flow through the bends, while the CNC-machined flanges are designed to provide accurate mounting and sealing surfaces. TIG-welded joints add structural strength for the repeated heat cycles associated with turbocharged engines.
T304 Stainless Steel Construction
The use of T304 stainless steel provides a combination of heat resistance, corrosion resistance, and durability for high-temperature exhaust applications. The polished finish also provides a clean appearance that complements modified Subaru engine bays.
What's Included
- Stainless steel exhaust header manifold assembly
- Stainless steel up-pipe
- Mounting hardware
- Gaskets
Important Fitment Information
This kit is designed for single-scroll turbo applications only.
It is not compatible with:
- FA20 WRX models
- Twin-scroll turbo configurations
- Applications requiring a different turbocharger or exhaust layout
Always verify your vehicle year, engine code, turbocharger configuration, and exhaust layout before ordering.
Professional installation is recommended.
Frequently Asked Questions
What Subaru models does this header and up-pipe kit fit?
This kit is designed for compatible 2008–2014 Subaru Impreza WRX and WRX STI models equipped with EJ255 and EJ257 2.5L turbo engines.
What engines are compatible with this Subaru WRX performance part?
It is designed for the EJ255 and EJ257 turbocharged engines used in the specified 2008–2014 WRX and WRX STI applications.
Is this kit compatible with the FA20 WRX?
No. This header and up-pipe kit is designed for EJ255 and EJ257 applications and is not compatible with FA20 WRX models.
Is this kit compatible with twin-scroll turbo systems?
No. It is designed specifically for single-scroll turbo applications.
What is the header and up-pipe made from?
The assembly is constructed from T304 stainless steel for durability, heat resistance, and corrosion protection.
Does the kit include gaskets and hardware?
Yes. The kit includes the header and up-pipe assembly along with mounting hardware and gaskets as specified.
Is this a bolt-on installation?
The kit is designed around factory-style mounting locations and routing for compatible applications. However, professional installation is recommended, and fitment should be verified before installation.
What are the benefits of mandrel-bent tubing?
Mandrel bending helps maintain a more consistent tube diameter through bends, supporting smoother exhaust flow compared with tubing that becomes significantly restricted during bending.
Why choose Subaru WRX Performance Parts for an EJ build?
Choosing components designed specifically around the EJ255 and EJ257 platform can help simplify fitment and ensure that the exhaust components match the intended turbo and vehicle configuration. This header and up-pipe kit combines T304 stainless steel construction, CNC-machined flanges, TIG-welded joints, and a factory-style single-scroll layout for compatible WRX and STI applications.
