Picture this: a crisp autumn morning, leaves swirling like confetti in the pale sunlight. The air crackles with anticipation as a low rumble cuts through the peaceful suburban soundscape. It’s not just any rumble; it’s the unmistakable growl of a WRX engine, but the source is…unexpected. A lifted Subaru Crosstrek, unassuming at first glance, but radiating a subtle menace. This isn’t your average grocery-getter. This is a meticulously crafted machine, a testament to the dedication (and maybe a little madness) of one passionate owner. This is the WRX-swapped Crosstrek the world never knew it needed, and it’s finally here. (Honestly, I got chills when I first saw it).
The Subaru faithful have long lamented the lack of a true performance hatch in the modern lineup. The WRX sedan is fantastic, sure, but the practicality and style of a hatchback are undeniable. Enter the Crosstrek, a capable and stylish crossover, but lacking the outright power to truly excite. The solution? A heart transplant, of course. Why settle for adequate when you can have exhilarating? Why have a good car when you can have the best WRX Crosstrek? This isn’t just about slapping a turbocharger on a stock engine, no this is a full blown swap.
This build represents the perfect blend of practicality and performance, a harmonious marriage of Subaru’s rugged crossover and legendary turbocharged prowess. It’s the answer to a question Subaru seemingly refused to ask: what if we made a genuinely fast and fun Crosstrek? This modified Crosstrek is not just a car; it’s a statement. It’s a middle finger to boring commutes, a beacon of hope for hatchback enthusiasts, and a rolling testament to the power of ingenuity. This engine swapped car is a complete game changer.

The owner, let’s call him “Mike” for now, is a self-confessed Subaru enthusiast with a knack for turning dreams into reality. He wanted something unique, something that would stand out from the sea of ordinary cars. “I always loved the Crosstrek’s versatility,” Mike explained, “but it always felt like it was missing something. The WRX engine was the obvious answer. It just felt right.” The journey was far from easy (more on that later), but the results speak for themselves. The Subaru performance build is a sleeper.

The Vision: Hatchback Dreams
The core concept behind this Crosstrek WRX conversion was simple: retain the Crosstrek’s practical appeal while injecting the raw power and driving excitement of a WRX. Mike aimed for a refined build, one that looked and felt like it could have rolled off the Subaru factory floor (if Subaru had the guts to actually build it, that is). This wasn’t about creating a monstrous, track-only machine; it was about building a daily-drivable, all-weather weapon that could conquer both mountain roads and morning commutes.
Why the WRX Engine?
The choice of engine was a no-brainer. The Subaru WRX engine, with its turbocharged punch and readily available aftermarket support, is a legendary powerplant. It offers a significant power increase over the Crosstrek’s stock engine, transforming the driving experience from mundane to exhilarating. But simply dropping the engine in wasn’t enough. Mike wanted reliability and longevity, so he opted for a carefully selected and meticulously rebuilt EJ207 engine from a JDM WRX STI. “The EJ207 is a workhorse,” Mike explained. “It’s strong, reliable, and responds incredibly well to tuning.” A new ECU was crucial to ensuring optimum performance.
The Swap: A Symphony of Metal and Wires
The engine swap itself was a complex undertaking, requiring a significant amount of fabrication, wiring, and problem-solving. This wasn’t a weekend project; it was a months-long endeavor involving countless hours of research, planning, and elbow grease.
The Challenges
The biggest hurdles involved adapting the WRX engine to the Crosstrek’s chassis and electronics. Custom engine mounts had to be fabricated, the wiring harness needed extensive modification, and the cooling system required careful planning to ensure adequate heat dissipation.
* Engine Mounts: Stock engine mounts were not compatible and needed to be custom fabricated.
* Wiring Harness: The WRX wiring harness had to be meticulously integrated with the Crosstrek’s electrical system.
* Cooling System: Ensuring adequate cooling for the turbocharged engine required a larger radiator and custom plumbing.
* Drivetrain: Strengthening the drivetrain to handle the increased power output from the WRX engine.

Mike spent countless hours poring over wiring diagrams, meticulously tracing each wire and connector to ensure everything functioned correctly. “The wiring was a nightmare,” he admitted with a laugh. “I spent more time with a multimeter than I care to admit.” He also upgraded the fuel system with a high-flow fuel pump and larger injectors to ensure the engine received adequate fuel under boost. The modified Subaru is a beast.
The Drivetrain Dilemma
The stock Crosstrek drivetrain was never designed to handle the power of a WRX engine. To ensure reliability, Mike upgraded the transmission with stronger gears and a heavy-duty clutch. He also reinforced the axles and differentials to withstand the increased torque. This is a performance car build done right.
The Aesthetics: Sleeper Style
While the heart of this build is undoubtedly the engine swap, Mike paid careful attention to the aesthetics as well. The goal was to create a sleeper, a car that looked relatively stock but packed a serious punch. The exterior modifications are subtle but effective, enhancing the Crosstrek’s already appealing design without screaming for attention.
Subtle Enhancements
* Lift Kit: A mild lift kit provides a more aggressive stance and improves off-road capability.
* Wheels and Tires: Upgraded wheels and tires enhance both the look and performance of the car.
* Tinted Windows: Tinted windows add a touch of mystery and privacy.
* Debadging: Removing the Crosstrek badges creates a cleaner, more understated look.

The interior received similar treatment, with subtle upgrades that enhance the driving experience without compromising the Crosstrek’s comfort and practicality. The WRX Crosstrek interior is comfortable for daily driving.
Interior Upgrades
* WRX Seats: Swapping in WRX seats provides better support and comfort.
* Boost Gauge: A boost gauge allows the driver to monitor the engine’s performance.
* Custom Floor Mats: Custom floor mats add a touch of personalization.
The Result: A Dream Realized
After months of hard work and dedication, Mike’s WRX-swapped Crosstrek is finally complete. The result is a stunning machine that perfectly blends practicality and performance. It’s a car that can handle daily commutes with ease, yet unleash a torrent of turbocharged power at the slightest provocation.
Driving Impressions
Driving the modified Crosstrek is an experience unlike any other. The turbocharged engine provides instant acceleration, while the upgraded suspension and brakes offer confident handling. The car feels planted and stable, even at high speeds. “It’s like driving a rocket ship,” Mike said with a grin. “The power is addictive.” This truly is a performance SUV build.
The Community Response
The WRX-swapped Crosstrek has generated a huge buzz in the Subaru community. Enthusiasts from around the world have praised Mike’s ingenuity and craftsmanship. Many have expressed their desire to replicate the build, while others simply admire the car’s unique blend of practicality and performance. “It’s the Subaru we’ve always wanted,” one commenter wrote. “Subaru needs to take note!”
The Future: What’s Next?
Mike isn’t content to rest on his laurels. He has plans for further upgrades, including a larger turbocharger, an upgraded intercooler, and a custom exhaust system. The goal is to push the engine’s performance even further while maintaining its reliability and drivability. The tuned Subaru has even more potential.
The Legacy
This WRX-swapped Crosstrek is more than just a car; it’s a symbol of what’s possible when passion and ingenuity combine. It’s a testament to the power of the human spirit to create something truly unique and special. It’s the modern hatch we never got, and it’s finally here, thanks to the dedication of one passionate owner. One anonymous source mentioned that Subaru is looking into making a limited run of these, “but don’t quote me on that.”
In conclusion, this WRX-swapped Crosstrek isn’t just a cool project; it’s a statement. It’s proof that with enough vision and dedication, you can create something truly extraordinary. It’s a reminder that the best cars are often the ones that break the mold, the ones that dare to be different. And who knows, maybe Subaru will finally take notice and give us the performance hatch we’ve been dreaming of. Until then, we can admire Mike’s creation and dream of what could be.
Frequently Asked Questions
| What exactly is a WRX-swapped Crosstrek? | A WRX-swapped Crosstrek is a Subaru Crosstrek that has had its original engine replaced with a more powerful Subaru WRX engine, typically a turbocharged EJ-series engine. This significantly increases the car’s performance and driving capabilities. |
| What are the benefits of doing a WRX swap on a Crosstrek? | The main benefit is a significant increase in horsepower and torque, transforming the Crosstrek’s driving experience. It also provides a unique and personalized vehicle that stands out from the crowd. Further benefits include improved acceleration, enhanced handling (with supporting modifications), and a more engaging driving experience overall. |
| What is involved in implementing a WRX swap on a Crosstrek? | The process involves removing the Crosstrek’s original engine and transmission, then installing the WRX engine, transmission, and associated components. This typically requires custom engine mounts, wiring modifications, fuel system upgrades, cooling system upgrades, and potentially drivetrain reinforcements. It’s a complex project best left to experienced mechanics or fabricators. |
| What are some of the challenges in performing a WRX swap on a Crosstrek? | Challenges include: adapting the WRX wiring harness to the Crosstrek’s electrical system, fabricating custom engine mounts, ensuring proper cooling for the turbocharged engine, strengthening the drivetrain to handle the increased power, and addressing potential fitment issues. Thorough research and planning are essential to overcome these challenges. |
| What is the future of WRX-swapped Crosstreks and similar engine swaps? | As long as there are enthusiasts looking for unique and personalized vehicles, engine swaps will continue to be a popular modification. With advancements in technology and readily available aftermarket parts, the possibilities for engine swaps are constantly expanding. The future may see more sophisticated swaps involving electric motors or hybrid systems. |
Important Notice
This FAQ section addresses the most common inquiries regarding the topic.



