MAP Stage 3 Evo X Cylinder Head Preparation – 2008–2015 Mitsubishi Evo X (EVOX-CHS-S3)

Description

MAP Stage 3 Evo X Cylinder Head Preparation – 2008–2015 Mitsubishi Evo X (EVOX-CHS-S3)

Firstly, BUY MAP Stage 3 Evo X Cylinder Head Preparation for 2008–2015 Mitsubishi Evo X. Take your Mitsubishi Evolution X 4B11T cylinder head to the next level with MAP Stage 3 Evo X Cylinder Head Preparation. Designed for 2008–2015 Mitsubishi Evo X applications, this MAPerformance service combines professional cylinder head machining with MAP Spec CNC porting and upgraded valvetrain components to create a performance-focused cylinder head package for serious street, strip, and competition builds.

The EVOX-CHS-S3 is a cylinder head preparation service rather than a simple bolt-on component. Customers can choose to send in their own usable cylinder head core or select the new-core option, depending on the configuration available when ordering. MAPerformance lists the product as built to order, so production and service times can vary.

The Stage 3 package builds on precision machine work with MAP Spec CNC porting. The service includes cleaning and inspection, high-performance deck resurfacing, a proprietary MAP five-angle radius valve job, CNC porting, final assembly, and outbound shipping. The package also includes performance valvetrain components from GSC, Ferrea, and Supertech along with Mitsubishi valve locks and a MAP stud and nut kit.

Features & Benefits

• MAP Stage 3 cylinder head preparation for Mitsubishi Evo X
• Fits 2008–2015 Mitsubishi Evolution X
• Designed for the 4B11T platform
• MAP Spec CNC porting
• Intake and exhaust port preparation
• Clean and hot tank service
• Visual evaluation and inspection
• High-performance RA deck resurfacing
• Proprietary MAP five-angle radius valve job
• Final cylinder head assembly
• GSC valve springs and retainers
• GSC valve seals
• Ferrea valves
• Mitsubishi valve locks
• MAP stud and nut kit
• Built-to-order service
• Available with customer-supplied core or new-core option
• Intended for performance-oriented street, strip, and race builds

MAP Stage 3 CNC Porting

The major difference between the Stage 3 service and a basic cylinder head preparation is the addition of MAP Spec CNC porting. This service is intended to improve the cylinder head’s airflow characteristics while maintaining professional machining and valve-train preparation.

For a performance-built Evo X, cylinder head airflow becomes increasingly important as the engine’s supporting modifications and power goals increase. The Stage 3 preparation combines porting with precision valve-seat work and deck preparation rather than treating porting as an isolated modification.

Firstly, the cylinder head is cleaned and inspected before machining. This provides a proper foundation for the subsequent work.

Secondly, the deck is resurfaced to high-performance RA specifications, while the MAP proprietary five-angle radius valve job is performed as part of the machining process. MAPerformance states that its valve-seat work uses Serdi equipment and that heads are vacuum checked after seat cutting to verify valve sealing.

Thirdly, the Stage 3 package adds MAP Spec CNC porting before the cylinder head is assembled with the specified performance valvetrain components. This creates a complete performance-oriented head preparation package rather than simply resurfacing or servicing the original cylinder head.

Included Services

The MAP Stage 3 Evo X Cylinder Head Preparation package includes:

• Clean / hot tank
• Visual evaluation and inspection
• Deck resurfacing to high-performance RA specifications
• Proprietary MAP five-angle radius valve job
• MAP Spec CNC porting
• Final assembly
• Outbound shipping

MAPerformance also describes its machining process as using CBN resurfacing equipment to achieve the required surface finish for proper head-gasket sealing on modern aluminum cylinder heads.

Included Valvetrain Components

The service includes performance-oriented valvetrain components:

• GSC springs and retainers
• GSC valve seals
• Ferrea valves
• Mitsubishi valve locks
• MAP stud and nut kit

These components are integrated into the cylinder head preparation service rather than being sold as a basic machining-only package.

Core Options

This product requires consideration of the cylinder head core.

If you already have a suitable Evo X cylinder head, the Have Core & Will Send It In option allows the service to be performed on your supplied core.

For customers who do not have a suitable cylinder head available, MAP offers a Purchase New Core option. MAPerformance states that the new-core charge is non-refundable.

Because this is a service-based product, customers should carefully review the selected core option before placing an order.

BUY MAP Stage 3 Evo X Cylinder Head Preparation for 2008–2015 Mitsubishi Evo X, CNC porting, precision valve work and upgraded valvetrain components.

Vehicle Fitment

Application:

• Mitsubishi Lancer Evolution X – 2008–2015
• Mitsubishi Evolution X 4B11T

The manufacturer’s listed application is 2008–2015 Mitsubishi Evo X.

Important Product Information

This is not a standard off-the-shelf replacement cylinder head. It is a performance cylinder head preparation service that involves machining and assembly.

The product is also built to order, and MAPerformance notes that build times can change depending on demand. Customers should confirm current lead times before ordering if the cylinder head is required for a specific engine-build schedule.

Before ordering, confirm your core condition and selected core option. A suitable cylinder head core is required for the service unless the new-core option is selected.

Installation & Engine-Build Considerations

Professional installation and engine assembly are recommended. Cylinder head installation requires correct head-gasket selection, torque procedures, camshaft timing, valvetrain setup, and appropriate engine-building practices.

The cylinder head should be matched with the rest of the 4B11T build, including the engine’s cams, turbocharger, intake and exhaust systems, fuel system, ECU calibration, and intended RPM range.

A properly prepared cylinder head is only one part of a complete performance engine. Supporting modifications and professional tuning should be considered according to the goals of the vehicle.

Package Includes

Depending on the selected core option, the product is a Stage 3 Evo X cylinder head preparation service including the listed machining, CNC porting, assembly, and specified valvetrain components. MAPerformance lists the service with both customer-core and new-core options.

Frequently Asked Questions

What is MAP Stage 3 Evo X Cylinder Head Preparation?

It is a professional performance cylinder head preparation service for the 2008–2015 Mitsubishi Evo X. The Stage 3 package adds MAP Spec CNC porting alongside precision machining, valve-seat work, resurfacing, assembly, and upgraded valvetrain components.

Does the EVOX-CHS-S3 include CNC porting?

Yes. MAP Spec CNC porting is one of the defining features of the Stage 3 Evo X cylinder head service.

Does this product fit the Evo X 4B11T?

Yes. The listed application is the 2008–2015 Mitsubishi Evolution X, using the 4B11T platform.

Do I need to provide a cylinder head?

A suitable customer-supplied core can be used, or you can select the new-core option. The exact option should be selected when ordering.

Is this a complete cylinder head or a machining service?

It is a cylinder head preparation service that includes machining, CNC porting, final assembly, and specified valvetrain components. Core options are available.

Is Stage 3 suitable for a performance Evo X build?

The Stage 3 package is specifically designed as a performance-oriented cylinder head service, with CNC porting and upgraded valvetrain components intended for demanding street, strip, and competition-oriented applications.

Why Buy from evomotorparts.com?

At evomotorparts, we specialize in Mitsubishi Evolution parts for performance builds, engine upgrades, restoration projects, and replacement applications.

Our range includes OEM Mitsubishi components and premium aftermarket products for Evo 7, Evo 8, Evo 9, and Evo X platforms.

• Quality Mitsubishi Evolution performance parts
• OEM and premium aftermarket components
• Performance-focused Evo 4G63 and 4B11T parts
• Competitive pricing
• Worldwide shipping
• Dedicated customer support for Mitsubishi Evolution enthusiasts

Conclusion

The MAP Stage 3 Evo X Cylinder Head Preparation EVOX-CHS-S3 is a comprehensive performance cylinder head service for 2008–2015 Mitsubishi Evolution X 4B11T builds. With MAP Spec CNC porting, precision valve-seat work, deck resurfacing, professional inspection, final assembly, and upgraded valvetrain components, it provides a complete foundation for a serious Evo X engine project.

For customers looking to buy MAP Stage 3 Evo X Cylinder Head Preparation for a high-performance 4B11T build, verify your core requirements and selected core option before ordering.

BUY MAP Stage 3 Evo X Cylinder Head Preparation for 2008–2015 Mitsubishi Evo X, CNC porting, precision valve work and upgraded valvetrain components.