Upgrade your compatible Subaru WRX or WRX STI with this T304 stainless steel exhaust header and up-pipe kit, designed for 2008–2014 models equipped with EJ255 and EJ257 2.5L turbocharged engines.
Featuring a factory-style single-scroll turbo configuration, this kit combines a tubular exhaust header and up-pipe to support exhaust flow in compatible Subaru performance builds. Mandrel-bent tubing helps maintain a consistent internal diameter through bends, while CNC-machined flanges are designed for accurate alignment and reliable sealing.
Constructed from T304 stainless steel, the assembly offers heat and corrosion resistance for demanding exhaust applications. TIG-welded joints provide structural strength, and the polished finish adds a clean appearance to the engine bay.
Designed around factory-style mounting and routing for compatible applications, this kit is intended for single-scroll turbo configurations. It is not compatible with FA20 WRX models or twin-scroll turbo setups. Verify your vehicle's engine code, turbocharger configuration, and exhaust layout before ordering.
| Specification | Details |
|---|---|
| Product Type | Turbo exhaust header and up-pipe kit |
| Vehicle Make | Subaru |
| Compatible Models | Impreza WRX and WRX STI |
| Listed Model Years | 2008–2014 |
| Compatible Engines | EJ255 and EJ257 |
| Engine Displacement | 2.5L turbocharged |
| Material | T304 stainless steel |
| Finish | Polished stainless steel |
| Tubing | Mandrel-bent |
| Flanges | CNC-machined |
| Welding | TIG-welded |
| Turbo Configuration | Factory-style single-scroll |
| Installation Design | Factory-style mounting and routing |
| Included Accessories | Mounting hardware and gaskets |
| Vehicle | Engine | Listed Model Years |
|---|---|---|
| Subaru Impreza WRX | EJ255 2.5L Turbo | 2008–2014 |
| Subaru Impreza WRX STI | EJ257 2.5L Turbo | 2008–2014 |
Not compatible with: FA20 WRX models or twin-scroll turbo configurations.
| Question | Answer |
|---|---|
| Which Subaru models is this kit designed for? | Compatible 2008–2014 Subaru Impreza WRX and WRX STI models equipped with the specified EJ engines and single-scroll turbo configuration. |
| Which engines are supported? | EJ255 and EJ257 2.5L turbocharged engines, subject to vehicle and turbo configuration verification. |
| Is this kit compatible with the FA20 WRX? | No. It is designed for EJ255 and EJ257 applications, not FA20 WRX models. |
| Does this kit fit twin-scroll turbo systems? | No. It is designed for single-scroll turbo applications. |
| What material is used? | T304 stainless steel with a polished finish. |
| Are mounting hardware and gaskets included? | Yes. The kit includes mounting hardware and gaskets, along with the header and up-pipe assembly. |
| What is the purpose of mandrel-bent tubing? | Mandrel bending helps maintain a more consistent internal tube diameter through bends, supporting smoother exhaust flow. |
| Is professional installation recommended? | Yes. Verify the engine code, turbocharger configuration, and exhaust layout before installation. Professional installation is recommended. |
WARNING: RACE / COMPETITION USE ONLY
This part is built and sold only for racing vehicles used solely in closed-course competition. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. Off-road or off-highway use is not competition use. Installing this part on a vehicle used on public roads may violate the federal Clean Air Act, 42 U.S.C. 7522(a)(3), and state law, and may result in civil or criminal penalties, failed inspections and loss of registration. Emissions laws vary by state. Check yours before you buy.
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. THE SALE, USE OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. 7522(a)(3)).