This T304 stainless steel 4-1 exhaust manifold header is designed for listed 2011–2016 Scion tC models equipped with the 2.5L 2AR-FE DOHC inline-four engine. Its application-specific tubular layout routes four primary tubes into a single collector for compatible performance exhaust configurations.
The header features one O2 sensor bung shown on the assembly and is supplied with the gaskets and mounting hardware pictured. Because vehicle condition, O2 sensor layout, downstream exhaust components, and emissions configurations may vary, verify all connection points and installation requirements before purchase.
Product Overview
This product is a single 4-1 exhaust manifold header assembly for compatible second-generation Scion tC 2.5L applications. It mounts at the cylinder-head exhaust side and connects to a compatible downstream exhaust flange.
This is not a catback exhaust, axle-back exhaust, downpipe, turbo manifold, catalytic converter, complete exhaust system, or universal header kit.
Key Details
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Fitment: 2011–2016 Scion tC 2.5L applications
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Engine: 2.5L 2AR-FE DOHC inline-four
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Product Type: 4-1 Exhaust Manifold Header
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Header Layout: Four primary tubes merging into one collector
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Material: T304 stainless steel
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O2 Sensor Provision: One O2 sensor bung shown on the header
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Connection: Designed for the compatible cylinder-head flange and downstream exhaust connection
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Installation: Professional installation is highly recommended
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Instructions: Installation instructions are not included
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Use: Intended for off-road, racing, or closed-course applications where emissions laws apply
Fitment
Use the table below to confirm the primary vehicle application for this header. Before ordering, verify the model year, 2AR-FE engine, cylinder-head flange pattern, O2 sensor position, downstream outlet connection, and emissions configuration.
| Vehicle |
Year |
Engine |
Fitment Notes |
| Scion tC |
2011–2016 |
2.5L 2AR-FE DOHC I4 |
Verify the cylinder-head flange, O2 sensor position, downstream outlet connection, and emissions setup before purchase |
Fitment Note: Confirmed listing fitment is limited to the listed 2011–2016 Scion tC 2.5L 2AR-FE application. This product is not intended for the 2005–2010 Scion tC equipped with the 2.4L 2AZ-FE engine. Matching engine displacement alone does not confirm fitment for other Toyota or Scion models.
Package Includes
- 1 × T304 stainless steel 4-1 exhaust manifold header
- 1 × Cylinder-head flange gasket
- 1 × Outlet donut gasket
- 2 × Mounting bolts
- 2 × Mounting nuts
Package contents are based on the components shown in the product images. Compare the received parts with the product photos before beginning installation.
Installation Notes
- Professional installation is highly recommended.
- Installation instructions are not included.
- Allow the engine and exhaust system to cool completely before beginning installation.
- Test fit the complete header assembly before final tightening.
- Verify cylinder-head flange alignment and gasket seating before securing the header.
- Confirm the O2 sensor position, sensor thread compatibility, wiring clearance, and connector reach.
- Verify the outlet flange and downstream exhaust connection before installation.
- Do not force the header or downstream exhaust components into alignment.
- Modified exhaust systems, previous repairs, or non-factory components may require additional adjustment or compatible connecting parts.
- Old, rusted, or seized factory hardware may increase installation difficulty.
- Inspect all exhaust connections for leaks after installation.
- Recheck accessible mounting hardware after the first complete heat cycles where appropriate.
Before You Buy
- This product is intended for listed 2011–2016 Scion tC models equipped with the 2.5L 2AR-FE engine.
- It is not intended for the 2005–2010 Scion tC 2.4L 2AZ-FE application.
- Do not determine fitment by engine displacement alone.
- Verify the cylinder-head flange, O2 sensor position and thread, outlet flange, downstream exhaust connection, and available installation clearance.
- One O2 sensor bung is shown on the header. Confirm that its position and configuration match your vehicle before installation.
- This is an exhaust manifold header, not a catback exhaust, axle-back exhaust, downpipe, turbo manifold, catalytic converter, or complete exhaust system.
- Depending on the vehicle and emissions configuration, additional O2-related components or ECU calibration may be required. No universal no-CEL claim is made.
- This product may alter the factory exhaust or emissions-related configuration.
- This product is intended for off-road, racing, or closed-course use where emissions laws apply.
- It is not represented as street legal, emissions compliant, or CARB compliant unless explicitly stated.
- Sound, exhaust flow, drivability, and performance results may vary by vehicle condition, installation, and supporting components.