WRX Top Mount Intercooler – Easy Upgrade Guide (2002–2022+)
Upgrade your Subaru WRX with a top mount intercooler (TMIC) for faster response and cooler intake temps. A quality TMIC upgrade reduces heat soak, improves reliability, and keeps your car performing at its best. From the early 2002 GD models to the newest 2022+ VB WRX, a top mount intercooler is a smart choice for daily driving and light performance builds.
Why Choose a WRX Top Mount Intercooler?
A WRX top mount intercooler replaces the small factory unit with a larger and more efficient design. Key benefits include:
· Faster turbo response thanks to short piping
· Simple installation without cutting bumpers or moving parts
· OEMstyle fitment that looks clean under the hood
· Good value for street and spirited driving
If you want quick response, easy installation, and balanced performance, a TMIC is the smart upgrade.
WRX Top Mount Intercooler vs. Front Mount Intercooler
Both intercoolers work well but serve different needs:
- TMIC (Top Mount Intercooler): Quicker spool, easy to install, OEM fitment, best for daily driving and stage 1–2 builds.
- FMIC (Front Mount Intercooler): Maximum cooling capacity, suited for highboost or track builds, but requires more modification.
Want maximum cooling power? Browse our WRX front mount intercooler upgrades.
GenerationSpecific Fitment
2002–2007 GD WRX
- TMIC upgrades reduce heat soak on EJ20 and EJ25 engines.
- Options from GrimmSpeed and Process West are popular for this generation.
2008–2014 GR/GV WRX
- Wider bodies allow better airflow to the intercooler.
- Mishimoto and COBB offer costeffective TMIC kits for these years.
2015–2021 VA and 2022+ VB WRX
- FA20 and FA24 engines respond very well to TMIC upgrades.
- Brands like GrimmSpeed and Process West lead the way with modern WRX top mount intercooler kits.
Top WRX TMIC Brands
- GrimmSpeed – Known for great design, easy installation, and proven performance. Their GrimmSpeed top mount intercooler is a favorite among WRX owners.
- Process West – Large cores and strong build quality, perfect for reliability.
- Mishimoto – Affordable TMIC kits that work well for street builds.
- COBB Tuning – Pairs with their tuning solutions for consistent results.
Installation and Tuning
- Easy install: Most WRX TMIC kits are direct boltons. Many owners can install them with basic tools.
- Tuning: Some kits work on stock maps, but a proper tune gets the best power and safety.
- Supporting mods: Pair your TMIC with an intake, turbo inlet, or exhaust for even better results.
Performance Benefits
A WRX top mount intercooler upgrade gives you:
- Reduced heat soak for consistent power
- Faster throttle response compared to FMIC setups
- Stable performance in hot conditions
- Better engine reliability with lower intake temps
Buying Guide
When choosing a WRX top mount intercooler kit, consider:
- Driving style: Street vs. track
- Budget: Mishimoto for value, GrimmSpeed and Process West for toptier
- Future goals: Stage 1–2 builds get the most from TMIC upgrades
Conclusion
A WRX TMIC upgrade offers the right mix of performance, drivability, and simplicity. It is the best choice for drivers who want better response and reliable cooling without heavy modification. Whether you own a GD, VA, or the latest VB WRX, trusted brands like GrimmSpeed, Process West, Mishimoto, and COBB have proven kits to match your build.
Transform your WRX today with a top mount intercooler and enjoy stronger, more consistent performance on every drive.