2011-2016 Scion tC 2AR-FE stainless 4-1 exhaust header kit
Scion tC 2.5L exhaust header with gaskets bolts and hardware
T304 stainless 4-1 header for Scion tC 2AR-FE engine
Scion tC exhaust header flange gaskets and mounting bolts
2011-2016 Scion tC tubular exhaust manifold header side view
Scion tC 2AR-FE header collector flange and welded tubes

2011–2016 Scion tC 2.5L 2AR-FE 4-1 Exhaust Header – T304 Stainless Steel

SKU: XKV11241
Availability : In Stock Pre order Out of stock
$239.00 $216.58 SAVE $22.42
Fitment & Specs
Fits 2011–2016 Scion tC 2.5L 2AR-FE. Verify O2 sensor position, outlet flange, downstream exhaust connection, and emissions setup before purchase.
T304 Stainless Steel · Bolt-On · Professional Installation Recommended
Before You Buy: Off-road/racing use only · Professional install recommended · May Be Required — Verify O2 / Emissions Setup
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Description

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

  • Fitment: 2011–2016 Scion tC 2.5L applications
  • Engine: 2.5L 2AR-FE DOHC inline-four
  • Product Type: 4-1 Exhaust Manifold Header
  • Header Layout: Four primary tubes merging into one collector
  • Material: T304 stainless steel
  • O2 Sensor Provision: One O2 sensor bung shown on the header
  • Connection: Designed for the compatible cylinder-head flange and downstream exhaust connection
  • Installation: Professional installation is highly recommended
  • Instructions: Installation instructions are not included
  • 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.
Shipping & Return

SHIPPING & DELIVERY
Fast Processing & Reliable Transit

  • Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
  • Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
  • Shipping - Free shipping on all orders within the contiguous 48 U.S. states.

RETURNS & EXCHANGES
30-Day Hassle-Free Policy

  • Return Window: We offer a 30-day return policy from the date of delivery.
  • Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
  • Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.

WARRANTY
2-Year Limited Replacement Warranty

  • Duration: All products are backed by a 2-year limited warranty.
  • Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).

CUSTOMER SUPPORT
We’re Here to Help – Contact Us First

  • Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
  • Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
  • Email Support: You can reach us at support@XKVracing.com.

What Does an Exhaust Header Actually Do?

The exhaust header is the first section of the exhaust system and mounts directly to the engine. Its role is to collect exhaust gases from each cylinder and route them into the rest of the exhaust system.

Compared to many factory manifolds, header designs often focus on smoother internal flow and more uniform exhaust routing before gases move downstream.

What You May Notice After Installation

Smoother exhaust flow as engine speed increases

More consistent engine behavior across the RPM range

Improved exhaust routing when paired with other intake or exhaust components

Changes in exhaust tone, depending on system configuration

When This Type of Upgrade Is Typically Considered

Addressing airflow limitations in the factory exhaust manifold

Planning coordinated intake or exhaust system updates

Replacing aging or restrictive original components

Build a balanced, performance-focused setup

Factory Manifold vs. Performance Header

Factory Exhaust Manifold

Designed to meet packaging, cost, and emissions requirements
Prioritizes durability and compliance across broad use cases

Performance Exhaust Header

Designed with exhaust flow characteristics in mind
Built for higher exhaust temperatures and specific vehicle platforms
Commonly used as part of an exhaust system configuration

Important Notice

Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.

Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.

Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.

Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.

Frequently Asked Questions

What do exhaust headers do? +

Exhaust headers help route exhaust gases away from the engine through individual tubes and collector-style routing. Actual results depend on the vehicle, engine condition, exhaust system, installation quality, and supporting components.

What's the difference between headers and factory manifolds? +

Factory manifolds are typically designed around packaging, durability, emissions requirements, and production cost. Headers or manifold-related exhaust upgrades may use different tube routing, flange designs, or connection layouts depending on the application.

Will headers increase horsepower? +

Headers may support improved exhaust flow where the product is compatible, but horsepower and torque changes are not guaranteed. Results vary by engine setup, tuning, exhaust configuration, vehicle condition, installation, and supporting modifications.

Do headers make the vehicle louder? +

Headers and related exhaust parts can change exhaust tone and may increase sound depending on the rest of the exhaust system. Final sound level depends on the engine, mufflers, catalytic converters, pipe routing, and complete exhaust setup.

Do I need tuning after installing headers? +

Tuning requirements depend on the vehicle, engine management system, O2 sensor setup, emissions equipment, and supporting modifications. Some installations may not require tuning, while modified builds may require professional inspection, calibration, or tuning to support proper drivability.

Are header products street legal? +

Header and exhaust products may be intended for off-road or racing use where emissions laws apply. They are not represented as street legal, emissions-compliant, or CARB-compliant for public road use unless a valid exemption is explicitly stated. Always check local regulations before purchase and installation.

Can I use headers with a stock exhaust system? +

Compatibility with a stock exhaust system depends on the vehicle and existing exhaust configuration. Some vehicles may require additional hardware, gaskets, connectors, adjustment, or fabrication to complete installation.

Are headers hard to install? +

Installation difficulty varies by vehicle. Tight engine bays, old hardware, rust, engine swaps, modified exhaust systems, sensor placement, and clearance around surrounding components can increase installation complexity. Professional installation is recommended.

Will headers affect reliability? +

Reliability depends on fitment accuracy, installation quality, vehicle condition, heat management, gasket sealing, fastener condition, sensor placement, and supporting components. Proper inspection and installation are important.