GReddy 12400908 Breather Tank

GReddy Breather Tank Review

If you’ve ever opened the hood of a heavily modified turbo car and noticed:

  • oil residue everywhere
  • mystery crankcase pressure
  • hoses routed like spaghetti
  • or an engine bay smelling vaguely angry

…you already understand why breather tanks exist.

Because once boost enters the conversation, crankcase pressure immediately starts acting like it pays rent.

The GReddy Breather Tank helps improve crankcase ventilation and oil control on modified import vehicles by reducing oil blow-by and stabilizing crankcase pressure under aggressive driving conditions.

And yes, this becomes extremely important once your turbo setup starts making enough boost to concern nearby wildlife.

Works With Most Import Cars
High Pressure Cap
All Install Hardware Included

$178.13

Universal Fit for Most Import Cars

The GReddy Breather Tank is designed to work with:

  • Most import vehicles
  • Turbocharged applications
  • Naturally aspirated performance builds

Common applications include:

  • Honda
  • Acura
  • Nissan
  • Subaru
  • Mitsubishi
  • Toyota
  • Mazda platforms

Perfect for:

  • Turbo street cars
  • Drift builds
  • Track cars
  • High-RPM setups
  • Engine-swapped projects

Because no modified import survives long without eventually needing better crankcase management.

GReddy Universal Coolant Reservoir Breather Tank That is the up to date version of Greddy’s then popular S-Kind and N-Kind Breather Tank.

Why Breather Tanks Matter

Under aggressive driving, engines create:

  • Crankcase pressure
  • Oil vapor
  • Blow-by gases
  • Excessive ventilation demand

Especially on:

  • Turbocharged engines
  • High-mileage motors
  • High-compression setups
  • Track-driven cars

Without proper ventilation, this can cause:

  • Oil leaks
  • Pressure buildup
  • Reduced engine efficiency
  • Messy engine bays

And turbo Hondas somehow turn oil vapor into a full-time personality trait.

Improved Crankcase Ventilation

The GReddy breather tank helps:

  • Stabilize crankcase pressure
  • Improve airflow through the PCV system
  • Separate oil vapor from ventilation gases
  • Reduce oil contamination

This improves:

  • Engine reliability
  • Oil control
  • Long-term engine health
  • High-RPM stability

Especially beneficial during:

  • Track sessions
  • Drift events
  • High-boost pulls
  • Sustained aggressive driving

Where stock PCV systems occasionally begin emotionally surrendering.


Works With Such a lot Import Cars
High Pressure Cap
All Install Hardware Included

High Pressure Cap Design

One major feature is:

  • Included high-pressure cap

This helps maintain:

  • Better system sealing
  • Improved pressure control
  • More stable crankcase management
  • Enhanced reliability under boost

Especially useful for:

  • Turbocharged engines
  • High-horsepower builds
  • Engines running elevated boost pressure

Because boost pressure finds weak points faster than internet forums find arguments.


Cleaner Engine Bay & Reduced Blow-By

The breather tank helps reduce:

  • Oil vapor buildup
  • Engine bay contamination
  • Oil residue inside intake piping
  • Excessive crankcase mess

Helping maintain:

  • Cleaner intercooler piping
  • Better intake efficiency
  • Cleaner throttle body operation
  • More organized engine bays

Because oily charge pipes eventually become everybody’s least favorite surprise.


Ideal for Turbo & Track Builds

This breather tank is especially valuable for:

  • Turbo Hondas
  • SR20DET builds
  • EJ Subaru setups
  • 2JZ projects
  • Rotary builds
  • Drift cars

Improved crankcase management becomes critical once:

  • RPM increases
  • Boost pressure rises
  • Track abuse begins
  • Engine wear accumulates

And drift cars produce enough crankcase chaos naturally.


Includes Installation Hardware

Another major advantage:

  • All installation hardware included

This simplifies:

  • Installation
  • Hose routing
  • Mounting setup
  • System integration

Typical installation requires:

  • Basic hand tools
  • Hose routing
  • Mounting bracket installation
  • Approximately 1-3 hours

Depending on:

  • Engine bay layout
  • Turbo setup
  • Existing PCV modifications

And how creatively previous owners handled vacuum lines emotionally.


Why Upgrade to a Breather Tank?

Common reasons enthusiasts install breather tanks include:

  • Turbocharged crankcase pressure
  • Excessive blow-by
  • Track reliability
  • Cleaner intake systems
  • Better oil control
  • Engine bay organization

Because once power levels rise, factory PCV systems quickly realize they were not prepared for this lifestyle.


Final Verdict

For import enthusiasts wanting improved crankcase ventilation and better oil control, the GReddy Breather Tank delivers improved pressure management and engine reliability for high-performance applications.

Key benefits include:

  • Improved crankcase ventilation
  • Reduced oil blow-by
  • High-pressure cap included
  • Cleaner engine bay operation
  • Universal import compatibility
  • Complete installation hardware

Most importantly, your turbo car finally stops venting crankcase pressure like an emotionally unstable steam engine.

Specification: GReddy 12400908 Breather Tank

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