WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257

WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 – Performance Meets Iconic Subaru Style

There are few sights more iconic under the hood of a Subaru than the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257. That brilliant crimson finish doesn’t just scream performance—it’s a statement. It tells the world your Subaru isn’t just a car; it’s a purpose-built machine designed for speed, power, and precision. If you’re chasing OEM reliability with a touch of rally-bred character, this intake manifold assembly is the upgrade or replacement your EJ257 deserves.

Built to factory specifications and engineered to handle the airflow demands of Subaru’s turbocharged 2.5L EJ257 engine, this OEM red intake manifold offers both form and function. It’s more than a piece of hardware—it’s a symbol of Subaru’s motorsport pedigree, trusted by enthusiasts from daily drivers to competitive racers.

What Makes the WRX STI Red Intake Manifold Assembly EJ257 Special?

The WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 is more than a flashy centerpiece—it’s a precision-engineered intake system designed to optimize airflow into your engine’s combustion chambers. Subaru designed the EJ257’s intake manifold to balance air distribution across all cylinders, which translates to smoother performance, consistent combustion, and reliable horsepower gains.

• Signature Subaru Red Finish – A factory touch that makes your engine bay stand out.

• OEM Precision – Direct fitment for EJ257-powered WRX STI models, no modification required.

• Performance Driven – Optimized airflow improves throttle response and supports high-boost setups.

• Durability – Built from high-quality cast aluminum for long-term strength.

When enthusiasts talk about “bulletproofing” an EJ257, a solid intake manifold is one of the key components. This assembly provides the foundation your turbocharged setup needs to deliver consistent performance under pressure.

How Does It Work?

The intake manifold acts as the gateway for air traveling from your turbocharger (or naturally aspirated intake) into the engine’s cylinders. With the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257, air is distributed evenly across all four cylinders, ensuring balanced combustion and preventing lean conditions that can harm the engine.

Think of it as the lungs of your EJ257. The stronger and more efficient the intake manifold, the better your engine can breathe—resulting in:

• Faster throttle response

• Improved mid-range torque

• Enhanced top-end power

• Greater stability under high boost

Pairing this intake manifold with supporting mods—like larger injectors, upgraded intercoolers, and a professional tune—unlocks the full potential of your STI.

Why Enthusiasts Upgrade or Replace Their Intake Manifold

1. Performance Goals – For builds targeting higher horsepower, the OEM WRX STI intake manifold is a proven foundation.

2. Restoration – If your original intake is damaged, cracked, or corroded, this OEM assembly restores your Subaru’s performance and aesthetics.

3. Style & Pride – Few parts are as recognizable as the red STI manifold—perfect for car shows or engine bay detailing.

4. OEM Reliability – Unlike aftermarket options, you can trust this manifold to fit perfectly and withstand daily abuse.

Whether you’re chasing dyno numbers or just want your EJ257 running at its best, the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 is the smart choice.

Where Does It Fit?

This manifold is designed for Subaru’s EJ257 turbocharged 2.5L engine, most commonly found in WRX STI models. As an OEM part, it offers a bolt-on replacement for factory manifolds. Compatibility includes:

• 2004+ Subaru WRX STI models with the EJ257 engine

• EJ257 swaps into other Subaru platforms (with appropriate modifications)

If you’re performing a swap or rebuild, this assembly ensures OEM fitment and eliminates the guesswork often associated with aftermarket parts.

Installation Insights

Replacing or upgrading to the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 isn’t overly complicated, but it does require patience and mechanical skill. Here’s a general overview:

1. Disconnect the battery and relieve fuel pressure.

2. Remove intercooler, intake piping, and associated sensors.

3. Detach fuel rails and lines connected to the old intake manifold.

4. Unbolt and remove the old manifold assembly.

5. Install the new OEM red intake manifold using factory gaskets and torque specs.

6. Reconnect fuel rails, sensors, and intercooler piping.

7. Test for leaks, confirm proper operation, and enjoy the transformation.

A professional installation is always recommended for those unfamiliar with engine work, especially since proper torque and sealing are critical to performance.

Frequently Asked Questions (FAQ)

Q1: Will the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 fit my WRX?
A: It is specifically designed for STI models equipped with the EJ257. If you’re running an EJ205 or EJ255, this part will not directly fit without modifications or a swap.

Q2: Do I need tuning after installing this intake manifold?
A: If you’re simply replacing a stock manifold with an OEM equivalent, tuning is not required. However, if you’re adding other performance modifications, a tune is strongly recommended to maximize gains.

Why Buy OEM Instead of Aftermarket?

Aftermarket intake manifolds may promise higher flow, but they often compromise on fitment, drivability, and reliability. Subaru’s WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 delivers the perfect balance of performance and factory engineering. OEM parts are tested for durability, designed for your exact engine, and built to last.

Plus, that signature Subaru red finish can’t be replicated. It’s more than a part—it’s a badge of honor in the Subaru community.

A Question for You

When you pop your hood, do you want to see a generic aftermarket piece—or the legendary WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 that instantly tells everyone your Subaru means business?

• Explore our WRX STI Engine Components category to complete your build.

• Check out our WRX STI Wagon Rear Seats Install for more OEM upgrades.

Final Thoughts

The WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 is more than a replacement—it’s a performance upgrade, an aesthetic statement, and a cornerstone of Subaru’s rally-bred legacy. With its perfect OEM fitment, high-flow design, and unmistakable red finish, this intake manifold ensures your EJ257 not only performs at its peak but looks the part, too.

Whether you’re restoring a classic STI, upgrading your build, or simply replacing a worn-out manifold, this assembly delivers reliability, performance, and that iconic Subaru style.

Don’t compromise with lesser parts—equip your EJ257 with the WRX STI RED INTAKE MANIFOLD ASSEMBLY EJ257 and experience the difference Subaru engineering makes.

This part was taken from a 2021 STI crate engine and has never been used. It is in excellent shape and looks brand new! You won’t discover one better than this! It fits all STI models from 2008 to 2021. This is ideal for anyone looking to upgrade their old intake manifolds that have bad paint due to wear and tear over time.