TurboWorks Stainless Steel Exhaust Manifold for Subaru Impreza WRX/STI 2002-2005
For Subaru enthusiasts looking to get the most out of their WRX or STI, the TurboWorks stainless steel exhaust manifold is a solid foundation for your tuning journey. Designed for optimal flow and durability, this manifold is a must-have upgrade at the start of any serious engine build or performance project.
Fitment
- Subaru Impreza 2002-2005 WRX
- Subaru Impreza 2002-2005 STI
Material & Construction
- 100% stainless steel
Technical Specifications
- No additional specifications provided
What’s Included
- Exhaust manifold
- 24 months warranty
Installation Notes
- Replacing the exhaust manifold should be the first step in engine tuning for these models. Ensure proper installation for optimal exhaust flow and engine performance.
FAQ
- Is this manifold suitable as a first upgrade for engine tuning?
Yes, replacing the exhaust manifold is recommended at the start of any tuning project for these Subaru models. - Does the product come with a warranty?
Yes, a 24-month warranty is included. - Are additional parts needed for installation?
Lambda probe (O2 sensor) adapters are available separately to eliminate catalyst errors if required.
O2 Sensor (Lambda Probe) Adapters
If you’re tuning your Subaru and need to address catalyst error codes after exhaust modifications, these O2 sensor adapters are the solution. Designed for enthusiasts who want to keep their ECU happy after upgrading the exhaust system.
Fitment
- Compatible with Subaru Impreza 2002-2005 WRX / STI when using aftermarket exhaust manifolds
Material & Construction
- No material details provided
Technical Specifications
- No additional specifications provided
What’s Included
- O2 sensor adapter (lambda probe adapter)
Installation Notes
- Install the adapter to eliminate catalyst errors after exhaust manifold replacement.
FAQ
- Will this adapter prevent check engine lights after installing a new exhaust manifold?
Yes, it is designed to eliminate catalyst errors related to O2 sensors. - Is this required for all Subaru Impreza WRX/STI exhaust upgrades?
It is recommended if you encounter catalyst errors after modifying the exhaust system.
Thermal Tapes
Thermal tapes are essential for enthusiasts seeking to manage heat in their engine bay after upgrading to a performance exhaust manifold. Ideal for protecting components and improving thermal efficiency.
Fitment
- Suitable for use with Subaru Impreza 2002-2005 WRX / STI exhaust manifolds
Material & Construction
- No material details provided
Technical Specifications
- No additional specifications provided
What’s Included
- Thermal tape
Installation Notes
- Wrap the exhaust manifold to help reduce under-hood temperatures and protect sensitive components.
Copper Nuts
For a secure and reliable exhaust manifold installation, copper nuts offer excellent durability and resistance to heat. A smart choice for any enthusiast replacing their manifold on a Subaru Impreza WRX or STI.
Fitment
- Designed for Subaru Impreza 2002-2005 WRX / STI exhaust manifold installation
Material & Construction
- No material details provided
Technical Specifications
- No additional specifications provided
What’s Included
- Copper nuts
Installation Notes
- Use copper nuts to secure the exhaust manifold for improved heat resistance and reliability.
Vehicle Compatibility
| Brand | Model | Generation / Chassis | Engine |
|---|---|---|---|
| Subaru | IMPREZA STI | 2002-2005 | - |
| Subaru | IMPREZA WRX | 2002-2005 | - |
TURBOWORKS
| Default | |
| Make | Toyota, Subaru |
Subaru Impreza WRX STI 02-05 Exhaust Manifold Upgrade
Tags: TURBOWORKS Exhaust manifolds,
| Brand | Model | Generation | Engine |
|---|---|---|---|
| Subaru | IMPREZA STI | 2002-2005 | - |
| Subaru | IMPREZA WRX | 2002-2005 | - |

| Default | |
| Make | Toyota, Subaru |





