Lot T806310: 2024 Subaru WRX Limited

Great question! The 2024 WRX Limited is on the VB chassis with the FA24 2.4L turbo — a solid platform that can make reliable power with the right approach. Here’s my take on the best performance path:

Top Performance Mods (In Order of Priority)

1. Tires First (Best Bang for Buck!)

Don’t overlook this! High-grip summer or 200TW tires are the biggest “0–60 mod” you can buy. The FA24 can’t use power that the tires can’t transmit.

2. ECU Tuning with a Cobb Accessport

This is where the magic happens for the FA24. A proper off-the-shelf (OTS) or custom tune will:

• Smooth out the “turbo lag” and partial-throttle bog
• Add roughly 40–50hp and similar torque on pump gas
• Give you data logging to monitor engine health

Popular: COBB, Edge Autosport, or a local reputable Subaru tuner.

3. Intercooler Upgrade (Heat is the Enemy)

The FA24 is sensitive to heat soak. After repeated pulls or hot weather, intake temps climb and power drops. A top-mount (TMIC) or front-mount (FMIC) intercooler keeps temps down so your tune stays consistent.

Good brands: GrimmSpeed, Mishimoto, ETS

4. 3-Port Electronic Boost Control Solenoid (EBCS)

More precise boost control = smoother power delivery and reduced boost oscillation. This supports your tune and makes the car feel more predictable.

5. Intake (With Caution)

An intake helps airflow and turbo sound, but only if properly tuned. Many intakes change MAF scaling and require calibration. Don’t install without a matching tune.

Recommended Build Path

Important FA24 Notes

• Heat Management is Critical: The FA24 likes cool intake temps. Without an intercooler, repeated pulls cause power loss and knock.
• Manual Transmission: Since your Limited has the 6-speed manual, the clutch can handle Stage 2 power but may slip on aggressive E85 setups.
• Spark Plugs: Common gap for tuned FA24 is ~0.020”–0.022” (tighter than stock ~0.024”).
• Don’t chase low-RPM torque: Big torque down low feels fun but stresses internals. Smooth torque ramp is safer.

My Recommendation for Your Car

Start with Stage 1 (tune only) — it’s the best value and transforms the driving feel. Add an intercooler if you do back-to-back pulls, track days, or live somewhere hot. Save bolt-ons like downpipes for later (mindful of emissions!).

Want to see what other 2022+ WRX owners are modding? Check out our market page: https://classic.com/m/subaru/wrx/vb-2nd-gen/

Any specific power goals in mind? I can help narrow down the path!