Description

Tomei ARMS MX7967/BX7967 Bolt-On Turbo for Mitsubishi Evo 4–9 (TB401A-MT01B / TB403A-MT01B)

Firstly, Buy Tomei Evo 4-9 turbo upgrades online in MX7967 journal-bearing or BX7967 ball-bearing versions. Check fitment and installation needs before ordering. Upgrade your Mitsubishi Lancer Evolution with the Tomei Evo 4-9 turbo, a performance turbocharger designed for the 4G63 engine platform. Available in MX7967 journal-bearing and BX7967 ball-bearing versions, this Tomei ARMS turbo offers an option for Evo owners planning a responsive, well-matched performance build. Its billet compressor wheel, turbine design, and adjustable actuator make it a turbo upgrade worth considering for street and modified applications.

Choosing the right turbo depends on your goals, current modifications, and intended use. Whether you drive an Evo IV, V, VI, VII, VIII, or IX, confirm the exact fitment and installation requirements before ordering. The correct setup can help you build a balanced combination of turbocharger performance, boost control, and engine reliability.

Tomei Evo 4-9 Turbo: Key Features

The Tomei ARMS MX7967 and BX7967 share the same general turbo sizing but use different bearing designs. This gives buyers two options when planning a Mitsubishi Evo turbo upgrade.

Key features include:

• Two bearing options: Choose the MX7967 journal-bearing model or the BX7967 ball-bearing model.
• Billet compressor wheel: The CNC-machined compressor wheel is designed to support efficient airflow.
• Performance-focused sizing: The 7967 configuration suits owners planning a modified 4G63 engine setup.
• Adjustable actuator: The multi-rate actuator uses interchangeable springs to adjust actuator characteristics.
• Evo-focused application: The turbo is listed for Mitsubishi Lancer Evolution models from Evo IV through Evo IX.
• Distinct part numbers: MX7967 is listed as TB401A-MT01B, while BX7967 is listed as TB403A-MT01B.

Specifications and supplied hardware can vary by version and seller. Check the listing for your selected part number before purchasing.

MX7967 vs. BX7967: Choose the Right Turbo

The main difference between these two Tomei ARMS turbochargers is the center-section bearing design. Your choice should reflect your build requirements, budget, and performance priorities.

MX7967 Journal-Bearing Turbo

The MX7967 uses a journal-bearing center section. It is an option for Evo owners who want the ARMS turbo design with a conventional bearing configuration. Consider it when comparing turbo upgrades for a street car or a modified 4G63 build.

BX7967 Ball-Bearing Turbo

The BX7967 features a ball-bearing center section. Ball-bearing designs can offer quicker response in suitable applications, although actual spool characteristics depend on engine displacement, exhaust configuration, boost settings, and tuning.

Neither version guarantees a particular response time or power output. Your engine setup and supporting modifications play a major role in the final result.

Fitment for Mitsubishi Lancer Evolution 4–9

The Tomei ARMS MX7967/BX7967 is listed for Mitsubishi Lancer Evolution IV through Evo IX applications using the 4G63 turbocharged engine. These models span the CP9A and CT9A generations, but compatibility should be confirmed for the exact vehicle and turbo version.

Before you buy, check the following:

• Your Evolution model and year.
• The correct MX7967 or BX7967 part number.
• Compatibility with your existing intake, exhaust, manifold, and intercooler piping.
• Oil and coolant line requirements for your installation.
• Any necessary gaskets, fittings, or other installation hardware.
• Local emissions requirements if the vehicle will be used on public roads.

The term “bolt-on” describes the intended application, but it does not guarantee that every vehicle has identical installation needs. Confirm the manufacturer’s fitment information before placing your order.

Compressor Design and Boost Control

The ARMS 7967 turbo uses a CNC-machined billet compressor wheel. Its design supports airflow for performance-oriented engine builds. Compressor dimensions and turbine specifications influence how a turbo operates, but they do not determine the final power figure on their own.

The actuator is another important part of the setup. The multi-rate design uses six springs to adjust actuator characteristics. Correct configuration helps match boost control to the engine and supporting hardware.

Do not increase boost simply because the actuator allows adjustment. Safe boost levels depend on fuel quality, engine condition, fuel delivery, ignition timing, and ECU calibration. A professional tuner can help establish suitable settings for your vehicle.

Supporting Modifications for Your Evo Turbo Upgrade

A turbocharger works best when the rest of the engine setup supports it. Depending on your power target, you may need upgrades to fuel delivery, engine management, intake and exhaust components, or intercooling.

Firstly, check that your fuel pump and injectors can supply enough fuel for your intended setup.

Secondly, confirm that the turbo has the correct oil supply and any required coolant connections. Inspect fittings and gaskets carefully during installation.

Thirdly, arrange ECU tuning for the new turbo configuration. Proper calibration helps control fueling, ignition timing, and boost pressure while accounting for your engine and fuel type.

These checks can help you avoid compatibility issues and build a more dependable performance package. The exact supporting parts depend on your current modifications, intended power level, and driving conditions.

Why Buy a Tomei ARMS Turbo for Your Mitsubishi Evo?

The Tomei ARMS MX7967/BX7967 offers Evo owners two bearing configurations within the same general turbo family. Its billet compressor wheel and adjustable actuator make it a relevant option for drivers planning a considered upgrade rather than choosing a turbo based on size alone.

For a street-driven Mitsubishi Evo or a more extensively modified project, the right choice depends on the complete engine package. Confirm fitment, installation requirements, and tuning needs before buying. If you are comparing Mitsubishi Evo parts for a 4G63 build, checking these details helps you select components that work together.

Frequently Asked Questions

What is the difference between the Tomei MX7967 and BX7967?

The MX7967 uses a journal-bearing center section, while the BX7967 uses a ball-bearing center section. Choose the version that best suits your performance goals and budget.

Which Mitsubishi Evolution models does this turbo fit?

The turbo is listed for Evo IV, V, VI, VII, VIII, and IX applications. Confirm your model year, engine configuration, and exact part number before ordering.

Does this turbo guarantee a specific horsepower figure?

No. Engine output depends on the turbo configuration, fuel, boost settings, engine condition, supporting modifications, and tuning. Check the manufacturer’s specifications for the selected version and avoid treating a general power target as a guarantee.

Is the BX7967 always the better choice?

Not necessarily. The ball-bearing design may appeal to drivers prioritizing response, while the MX7967 offers a journal-bearing alternative. The best option depends on your vehicle and build priorities.

Will I need an ECU tune after installation?

A suitable ECU tune is strongly recommended after a turbocharger upgrade. The calibration should account for the turbo, fuel system, boost control, and other engine modifications.

Should I check installation hardware before buying?

Yes. Verify which gaskets, fittings, lines, and other components are included with the exact part number. Do not assume every item required for installation comes with the turbo.

Can I use this turbo on a daily-driven Evo?

It may suit a street-driven build when correctly matched to the engine and supporting parts. Driving characteristics depend on the complete setup, so discuss your intended use with a qualified tuner before choosing a turbo. Shop the Tomei ARMS MX7967/BX7967 turbo at Evomotorparts.com and confirm the correct version and fitment for your Mitsubishi Lancer Evolution build.

Buy Tomei Evo 4-9 turbo upgrades online in MX7967 journal-bearing or BX7967 ball-bearing versions. Check fitment and installation needs before ordering.