Performance modifications do not always need to involve major engine work.

In many vehicles, some of the most noticeable changes begin with the systems responsible for getting air into and out of the engine.

That is where Injen has built its reputation.

The brand develops performance intake systems, exhausts, intercooler and charge piping, air filters, and throttle controllers for a wide range of enthusiast vehicles. Its catalog covers everything from BMW and Toyota performance cars to trucks, SUVs, Volkswagen, Audi, Hyundai, Kia, Subaru, Ford, and other applications.

At XPH, the Injen lineup gives enthusiasts multiple ways to improve airflow and driving response without forcing every vehicle into the same type of modification.

A Performance Build Starts With Airflow

Every internal-combustion engine depends on airflow.

The challenge is creating an intake path that provides the engine with the volume of air it needs while maintaining appropriate air temperature, filtration, sensor compatibility, and drivability.

Injen approaches this through several different intake families rather than relying on one universal design.

The XPH catalog includes:

• Evolution cold-air intake systems
• SP Series intakes
• IS Series intakes
• Power-Flow intake systems
• tuned air intake systems
• short-ram intake systems
• air filters and replacement filtration
• supporting intake accessories

The correct choice depends on the vehicle, engine, available space, and intended use.

Evolution Intake Systems

The Evolution series is one of Injen's major intake families.

These systems are designed around vehicle-specific airflow requirements and are available for applications ranging from Toyota trucks and SUVs to sports cars and performance platforms.

XPH currently carries Evolution systems for vehicles including the Toyota Tacoma, Toyota 4Runner, Toyota Tundra, Toyota 86/Subaru BRZ, and Volkswagen Golf applications.

For example, the catalog includes an Evolution cold-air intake for the 2016-2020 Toyota Tacoma 3.5L V6 and Evolution systems for the 10-21 Toyota 4Runner and 07-20 Toyota Tundra 5.7L V8.

This makes the Evolution lineup particularly relevant to owners who want to improve airflow while maintaining a vehicle-specific installation.

SP Series: Tuned Intake Design

The SP Series takes a different approach to intake development.

Injen's SP systems incorporate technologies including its patented MegaRam and Air Fusion intake-tuning technology. The systems use 6061-T6 aluminum tubing and SuperNano-Web dry filtration on applicable designs.

The objective is not simply to create a larger intake tube.

The intake geometry itself is part of the design.

Injen developed its intake-tuning technology around the behavior of airflow within the intake system, allowing the company to optimize the system around the specific application.

That philosophy is particularly relevant when comparing a properly engineered intake with a generic universal intake.

Power-Flow Systems for Modern Trucks and SUVs

Injen's Power-Flow lineup gives truck and SUV owners another approach to intake performance.

The XPH catalog includes Power-Flow systems for applications such as:

• Toyota Tacoma
• Toyota Tundra
• Ford F-150
• Ford Expedition
• Toyota Tacoma 2.4L Turbo

The current catalog includes a 2024-2025 Toyota Tacoma 2.4L Turbo Power-Flow system as well as Power-Flow systems for Ford F-150 and Expedition applications.

This is an important part of Injen's product range because performance intake upgrades are not limited to sports cars.

Modern trucks and SUVs can also benefit from improvements to airflow and throttle response.

Short-Ram Intakes Have Their Place

A cold-air intake is not always the only logical solution.

Injen also offers short-ram systems for applications where a compact intake path is appropriate.

The XPH catalog includes short-ram systems for vehicles such as the Toyota Camry, Toyota C-HR, Volkswagen Jetta, Kia Stinger, Audi S4/S5, and other platforms.

A short-ram system places the intake path closer to the engine bay than a traditional cold-air configuration.

The advantage is often a simpler installation and a more direct intake path, while the trade-off is that the system's placement and heat-management strategy become particularly important.

That makes application-specific engineering more important than simply choosing the intake with the largest diameter.

Air Filters Are Still Part of the Equation

An intake system is only as effective as the filtration system supporting it.

Injen offers replacement and performance air filters across its catalog, including SuperNano-Web filtration used on applicable intake systems.

The company's filtration products are designed to balance airflow with the need to protect the engine from contaminants.

For enthusiasts who already have an Injen intake, a replacement filter can also be an important part of maintaining the system's intended performance over time.

BMW Performance Applications

Although Injen supports a very broad range of vehicles, its BMW catalog includes several products aimed at turbocharged performance applications.

XPH currently carries Injen components for BMW platforms including:

• F80 M3
• F82/F83 M4
• F30/F31 335i
• other BMW turbocharged applications

The lineup includes aluminum intercooler and charge piping rather than being limited to traditional intake systems.

For the F80 M3 and F82/F83 M4, for example, Injen offers a two-piece aluminum intercooler charge pipe in different finishes.

This makes Injen relevant to BMW owners who are already modifying the forced-induction side of the vehicle.

Charge-Air Piping for Turbocharged Engines

Once a turbocharged engine is producing more boost, the pressurized side of the intake system becomes increasingly important.

Injen's intercooler piping products are designed to replace selected factory sections with performance-oriented piping.

The XPH catalog includes Injen intercooler piping for BMW, Audi, and other turbocharged platforms.

For the 2018-2019 Audi S4/S5 B9 3.0L Turbo, for example, XPH lists Injen intercooler piping in polished, wrinkle black, and wrinkle red finishes.

These products can complement intake upgrades and other forced-induction modifications by addressing the airflow path after the turbocharger.

Injen for the Toyota 86 and Subaru BRZ

The Toyota 86 and Subaru BRZ are another example of how Injen's catalog covers enthusiast platforms outside the European market.

XPH carries an Injen Evolution intake for 2013-2020 Toyota 86/Subaru BRZ 2.0L applications.

The same platform also appears in Injen's exhaust lineup, with an SES cat-back exhaust featuring dual Injen-embossed mufflers.

That gives owners the opportunity to approach both sides of the engine's airflow system through the same manufacturer.

Exhaust Upgrades With the SES Line

Injen is not exclusively an intake company.

Its SES line provides performance exhaust systems designed to complement the airflow improvements made on the intake side.

The XPH catalog includes SES exhaust applications such as the Toyota 86/Subaru BRZ and Hyundai Sonata/Kia Optima.

An exhaust upgrade can change several characteristics at once:

• exhaust sound
• exhaust flow
• throttle response
• overall driving character
• visual appearance

The right system depends on the vehicle and how aggressive the owner wants the finished build to be.

Hyundai and Kia Coverage

Injen's product range also includes a significant selection of Hyundai and Kia applications.

XPH currently carries products for vehicles including:

• Kia Stinger
• Kia Forte
• Kia Forte Koup
• Kia Soul
• Kia Optima
• Hyundai Sonata
• Hyundai Elantra

The lineup includes both intake systems and throttle controllers, with an SES cat-back exhaust also available for selected Sonata/Optima applications.

For the 2022+ Kia Stinger 2.5L Turbo, for example, XPH lists Injen SP short-ram intake systems in polished, wrinkle black, and wrinkle red configurations.

Volkswagen and Audi Applications

Injen also has extensive coverage for Volkswagen and Audi platforms.

Current XPH listings include applications for:

• Volkswagen Golf
• Volkswagen GTI
• Volkswagen Golf R
• Volkswagen Jetta
• Volkswagen Jetta GLI
• Audi A3
• Audi A4
• Audi S4
• Audi S5

Products range from SP short-ram and Evolution intakes to intercooler piping and X-Pedal Pro throttle controllers.

For the B9 Audi S4/S5, Injen offers both intake and intercooler-piping solutions, giving owners options for improving airflow on both sides of the turbocharged system.

Toyota Trucks and Off-Road Platforms

Injen's truck coverage is another significant part of the lineup.

The catalog includes intake systems for:

• Toyota Tacoma
• Toyota Tundra
• Toyota 4Runner
• Toyota C-HR
• Toyota Camry
• Toyota Corolla
• Toyota iA

The latest applications also include the 2024-2025 Tacoma with its 2.4L turbocharged four-cylinder engine.

This demonstrates how the brand has expanded beyond traditional performance-car applications into modern truck and utility platforms.

Throttle Controllers for a Different Kind of Response

Not every driver is looking for more horsepower.

Sometimes the goal is to make the vehicle respond more immediately to throttle input.

Injen's X-Pedal Pro throttle controllers are designed for this purpose.

XPH carries X-Pedal Pro applications for vehicles including the Toyota Tacoma, Audi A4/Volkswagen GTI/Golf R, Hyundai Elantra/Kia Forte, Hyundai Sonata/Kia Optima, and other platforms.

A throttle controller does not replace an intake or exhaust system.

Instead, it addresses the relationship between accelerator-pedal input and throttle response.

That makes it a different type of modification that can complement a broader performance build.

Why Vehicle-Specific Design Matters

An intake system should not be selected simply because it fits the same engine family.

The chassis, engine bay, sensor locations, factory airbox, airflow requirements, and available space all matter.

Injen develops application-specific systems rather than treating every vehicle as a universal installation.

Its own product range includes dedicated systems for individual vehicle and engine combinations, while XPH's catalog identifies the applicable chassis and engine for each product.

This is especially important for vehicles that share engines across multiple chassis generations.

Choosing the Right Injen System

Before selecting an Injen product, consider:

• exact vehicle
• model year
• engine
• drivetrain where relevant
• cold-air versus short-ram configuration
• dry versus oiled filtration where applicable
• existing intake modifications
• turbocharger configuration
• intended use of the vehicle
• local emissions requirements

The same model name can cover multiple generations, and the correct intake or piping system can vary accordingly.

Checking exact fitment before ordering is therefore essential.

Building Around Airflow

One of the strengths of the Injen catalog is that its products can be used individually or as part of a larger build.

An enthusiast might begin with an intake.

Later, intercooler piping can be added to a turbocharged platform.

An exhaust can then address the other side of the engine's airflow system.

A throttle controller can be used to change pedal response.

The result does not have to be an extreme build.

Each component can be selected according to what the vehicle actually needs.

Performance Across More Than One Market

Injen's range is unusually broad for a performance airflow manufacturer.

The current catalog covers applications from BMW M cars and Audi S models to Toyota Supra-related and truck platforms, Volkswagen GTIs and Golf Rs, Hyundai and Kia turbo cars, Toyota trucks, and more.

That breadth makes the brand relevant to very different types of enthusiasts.

Whether the priority is sharper throttle response, improved intake airflow, more aggressive induction sound, better charge-air plumbing, or a more complete intake-and-exhaust combination, there is an Injen product family designed around the application.

Explore Injen at XPH

Extreme Power House carries Injen performance products across a wide selection of BMW, Toyota, Volkswagen, Audi, Hyundai, Kia, Ford, Subaru, and other applications.

From Evolution and SP Series intakes to Power-Flow systems, short-ram intakes, SES exhausts, intercooler piping, air filters, and X-Pedal Pro throttle controllers, Injen offers multiple ways to improve the airflow and response of a performance vehicle.

Explore the full Injen lineup at XPH: https://x-ph.com/brands/Injen.html