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What engine is in a 2007 WRX?

The 2007 Subaru WRX was powered by a turbocharged 2.5-liter flat-four (boxer) engine. This engine, known as the EJ255, was a key component of the high-performance WRX model and helped deliver the car's signature blend of power and all-wheel-drive handling. The EJ255 engine produced 224 horsepower and 226 lb-ft of torque in the 2007 WRX.


Engine Specifications


The 2.5-liter EJ255 engine in the 2007 Subaru WRX had the following key specifications:



  • Engine Displacement: 2,457 cc (2.5 liters)

  • Engine Configuration: Flat-four (boxer) design

  • Aspiration: Turbocharged

  • Horsepower: 224 hp @ 5,200 rpm

  • Torque: 226 lb-ft @ 2,800 rpm

  • Compression Ratio: 8.2:1

  • Valvetrain: Dual overhead camshafts (DOHC), 16 valves


The EJ255 engine was a key part of the WRX's high-performance package, providing strong acceleration and responsive power delivery thanks to its turbocharger. This engine helped make the 2007 WRX a popular choice among enthusiasts seeking an affordable, all-wheel-drive sports car.


Transmission Options


The 2007 Subaru WRX was available with two transmission choices:



  • 5-speed manual transmission

  • 4-speed automatic transmission with paddle shifters


The manual transmission was the more popular choice among enthusiasts, as it allowed for greater driver control and engagement. However, the optional automatic transmission with paddle shifters also provided a good balance of performance and convenience.

Is EJ255 same as EJ257?


For those production years, the engines were the same from the case, rods, and pistons, up to the B25 heads and cams. The only difference between them was the turbo and intercooler set-up, and the tuning of the ECU.



What kind of engine is in the WRX?


turbocharged SUBARU BOXER engine
The 2024 WRX features a standard 2.4-liter direct-injection turbocharged SUBARU BOXER engine.



How do I tell what EJ25 I have?


Placement isn't enough ej25. And ej20 is just a general term for displacement. So we need to take the next step and figure out what type of throttle body it has. So this engine.



What EJ is in the 2007 WRX?


Subaru engines have always been known to be well engineered that are both powerful and torquey, but Subaru engineers left a lot to be desired when it came to the EJ205 ('02 to'05 USDM WRX), EJ255 (USDM WRX '06 to present) and EJ257 ('04 to'07 USDM WRX STi) turbocharged models.



What Subaru has the EJ255 engine?


Model Applications

EJ255GHEImpreza WRX
EJ255 BE6PBGVEImpreza WRX
EJ255 BE6PBGVEImpreza WRX Limited
EJ255 BE6PBGVEImpreza WRX Premium
EJ255 BE6PBGVEImpreza WRX Special Edition



What is the engine code for the 2007 WRX?


After 2001, all WRXs used the EJ205, until 2006 when the USDM WRX model changed engines to the EJ255.



What cars have the FB25 engine?


FB25

  • Compression: 10.0:1.
  • Power: 170 hp (172 PS; 127 kW) at 5,800 rpm.
  • Torque: 174 lb⋅ft (236 N⋅m; 24 kg⋅m) at 4,100 rpm.
  • Application: 2011–18 North American Subaru Forester. 2013–19 North American Subaru Legacy. 2013–19 North American Subaru Outback.



Which WRX has the fa20 engine?


This engine paved the way for its American market debut as the FA20DIT (Direct Injection Turbocharged) that later equipped the USDM 2014+ Forester 2.0XT and the 2015+ WRX.



What is WRX EJ25?


The EJ25 engine has impressive power ratings, especially in the turbocharged version. The EJ25T produces 305 horsepower and 290 lb-ft of torque in the WRX STI model. The non-turbocharged version produces 170 horsepower and 174 lb-ft of torque in the Legacy and Outback models.



Why do EJ25 engines fail?


The EJ25 engine is an interference engine, meaning that if the timing belt fails, it can cause significant engine damage. The water pump is also a critical component that can fail and cause overheating. Replacing the timing belt and water pump at regular intervals is recommended to prevent these issues.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.