MAPerformance Evo X Build Series: Part 2 – Breathing, Braking, and Boosting

Welcome back to the MAPerformance Evo X build series! In Part 1, we covered the foundation of this build and why each upgrade was chosen. Now, it’s time to get our hands dirty and start transforming this Evo X into a serious performance machine. In this stage, we’re tackling airflow, exhaust, braking, and monitoring—a crucial step in maximizing both power and control.

Check the video above to see Zach and RJ build this thing with each of the parts that we discuss below. Otherwise, let's dive into the install process and see how each part enhances performance.

Read More About Phase 1 Of Our Build Process!

Step 1: Disassembly & Prep – Out with the Old

Before we could start throwing on new parts, we had to strip down the stock setup. That meant removing the factory intake, intercooler, exhaust components, and outdated brake parts. This process was necessary to make room for the new performance upgrades and ensure a clean install across the board. Disassembly might not be the most exciting step, but setting up the foundation right makes all the difference in the long run.

Step 2: Exhaust System – More Flow, More Sound

Next up, we turned our attention to exhaust flow - something our builders both agreed is much more fun than engine work. Freeing up restrictions on the turbo-side of the system allows for better boost control, quicker spool, and a more aggressive exhaust note. This meant installing the MAP Cast Turbo Manifold (EVOX-ICEM-BLK), MAP Downpipe (EVOX-O2E-REC-3D), and MAP Cat-Back Exhaust (EVOX-CBE-REV2-DUL-POL).

• MAP Turbo Manifold – A high-flow cast design improves exhaust flow, allowing the turbo to spool more efficiently.

• MAP Downpipe – Upgrading from the restrictive stock downpipe improves both turbo efficiency and power potential by reducing backpressure.

• MAP Cat-Back Exhaust – More aggressive sound, improved flow, and reduced weight make this an essential performance upgrade.

All these upgrades will make the exhaust tone deeper and more aggressive, which plays in nicely with the intake and blow off valve that we're adding to the car.

Step 3: Brake System Upgrade & Flush

With more power and speed on the way, it was time to address the braking system to keep everything in check. We installed Girodisc Front (A1-047) & Rear Rotors (A2-047), Hawk Performance Brake Pads (HB453B.585 Front & HB615B.535 Rear), and AMS Stainless Steel Brake Lines (AMS.04.01.0004-1).

• Girodisc Rotors – These two-piece rotors significantly improve cooling and reduce brake fade under hard use.

• Hawk Performance Brake Pads – Increased bite and heat resistance make these pads perfect for aggressive driving.

• AMS Stainless Brake Lines – Upgrading to stainless lines eliminates mushy pedal feel and improves braking response.

We also performed a full brake system flush, ensuring fresh high-temp fluid was running through the system - be sure to use an empty bottle from your soft drink of choice to accomplish this. The result will be a firmer pedal feel, shorter stopping distances, and better fade resistance.

Step 4: Gauges & Boost Control – Keeping an Eye on Performance

The next install focused on monitoring the engine’s vitals and dialing in boost control. That meant installing AEM Gauges (A/F Ratio 30-4110, Oil Pressure 30-4406, Boost 30-4401), a Cobb 3-port boost control solenoid (752750), and finally flashing the ECU with the Cobb Accessport (AP3-MIT-002).

• AEM Gauges – Monitoring air-fuel ratios, boost pressure, and oil pressure ensures the car is running safely under increased power.

• Cobb Boost Control Solenoid  – Fine-tuning boost levels allows for more controlled and reliable power delivery.

• Cobb Accessport – Flashing the ECU with a proper tune is the final step in making all the mods work together for optimal performance.

Now that that's installed, the Evo X is fully equipped to handle increased boost safely, with real-time monitoring to prevent any surprises.

Step 5: Intercooler, Intake & Heat Shield – Letting the Engine Breathe

The final order of business in this stage of the build was improving airflow and cooling, ensuring the Evo X can handle more boost efficiently. That meant installing the MAP Intercooler Kit (EVOX-IC-KIT), MAP Intake (EVOX-AI-Rev3), and MAP Firewall Heat Shield (EVOX-FHS-REV2).

• MAP Intercooler Kit – Replacing the stock unit with a high-performance intercooler drastically improves cooling efficiency, reducing heat soak and keeping intake temps low, especially under boost.

• MAP Intake – This upgrade optimizes airflow into the turbo, increasing power potential while also enhancing throttle response and that signature turbo spool sound.

• MAP Firewall Heat Shield – Excessive engine bay heat can lead to power loss and component wear. The MAP heat shield helps deflect radiant heat, protecting wiring and surrounding components while aiding in temperature management.

After the install, we're expecting throttle response to feel much snappier, now that the engine is primed to handle future tuning and power upgrades.

Start Your EVO X Build Here!

Conclusion – Where We Stand & What’s Next

With the exhaust, braking, boost control, and airflow upgrades installed, this Evo X is now waking up and responding like a true performance machine. The combination of better airflow, a more efficient exhaust system, upgraded braking, and real-time monitoring ensures that everything is performing optimally, setting the stage for even bigger power gains when we can finally take it out on the road.

What’s next? Stay tuned for Part 3, where we’ll dive into the aesthetics of this Evo X build. We'll be taking a look at some carbon fiber parts, suspension updates, and a whole bunch more!

Have questions about these mods? Check out MAPerformance for all your Evo X upgrade needs—we have parts and accessories from across the board to help you get your build done right!