About the Subaru Legacy B4
Subaru Legacy B4: A Sedan with Substance and Style
The
Subaru Legacy B4
is the performance-oriented version of Subaru’s midsize sedan, combining comfort, reliability, and sporty driving dynamics. First introduced in
1998
, the B4 added a performance edge to the already capable Subaru Legacy lineup. Let’s break down its history, engines, safety, and what makes it stand out.
Origins and Overview
The “B4” in the Legacy B4 stands for
“Boxer 4”
, referencing Subaru’s signature horizontally opposed 4-cylinder engine layout. The B4 variant focused on sportier styling, enhanced performance, and a more engaging driving experience compared to the standard Legacy.
Subaru’s aim was to offer a refined sedan that could compete with both mainstream models like the Honda Accord and Toyota Camry, while also taking on sportier sedans from European brands.
Generations: Evolution of the Legacy B4
First Generation (1998–2003)
Chassis Code:
BE/BH
The Legacy B4 made its debut as a sporty alternative to the regular Legacy.
It introduced the
EJ20 twin-turbo engine
, producing up to
280 hp
in the
RSK trim
. This engine was primarily available in Japan, giving the B4 a unique performance edge.
Key features included Subaru’s
Symmetrical All-Wheel Drive (AWD)
and a more aggressive design with sporty touches like larger wheels and improved aerodynamics.
Transmission options included a
5-speed manual
or a
4-speed automatic
.
Second Generation (2003–2009)
Chassis Code:
BL/BP
This generation saw significant upgrades in both design and technology. The Legacy B4 adopted a sleeker, more modern look while improving interior quality and comfort.
Engines included the
EJ20 turbocharged flat-four
and the
EZ30 3.0L naturally aspirated flat-six
for the 3.0R trim, catering to both performance enthusiasts and those seeking smoother power delivery.
Subaru also introduced the
SI-Drive system
, allowing drivers to adjust engine performance based on driving conditions.
Third Generation (2009–2014)
Chassis Code:
BM/BR
The Legacy B4 grew in size, offering more interior space and a smoother ride. While it retained its sporty character, it leaned more toward comfort and luxury.
Engine options included the
EJ25 turbocharged engine
and the
EZ36 3.6L flat-six
, replacing the older EZ30.
Subaru also introduced its
Lineartronic CVT (Continuously Variable Transmission)
for better fuel efficiency, alongside traditional manual and automatic options.
Fourth Generation (2014–2019)
Chassis Code:
BN/BS
With this generation, the Legacy B4 received significant upgrades in safety and technology. Subaru’s
EyeSight Driver Assist
system became standard or available on most trims.
The
FA20DIT 2.0L turbocharged engine
was introduced, offering better efficiency and lower emissions. The naturally aspirated
FB25 2.5L engine
was also available.
Fifth Generation (2019–Present)
Chassis Code:
BT/BU
The current B4 is based on Subaru’s
Global Platform
, improving rigidity, safety, and ride quality. It combines sporty styling with modern technology, making it a true competitor in the midsize sedan segment.
Engine options include the
FA24 turbocharged 2.4L engine
with
260 hp
, paired with Subaru’s latest CVT transmission. This setup delivers smooth acceleration while maintaining good fuel economy.
Engines and Turbocharging
One of the defining features of the Legacy B4 over the years has been its diverse engine lineup, catering to different preferences.
Turbocharged Engines:
The B4’s performance trims have often featured turbocharged engines, starting with the
EJ20 twin-turbo
and later transitioning to single-scroll turbos like the
FA20DIT
and
FA24
. These engines are known for their linear power delivery and strong torque, ideal for spirited driving.
Naturally Aspirated Engines:
For those prioritizing smoothness and reliability, the B4 has also offered naturally aspirated options like the
EZ30
and
FB25
.
Fuel Efficiency
Fuel consumption has improved significantly across generations:
Older turbocharged models (e.g., the twin-turbo EJ20) averaged
18-22 mpg (9.4-13 L/100 km)
due to their performance focus.
Modern turbo engines, like the FA24, manage around
24-30 mpg (7.8-10.2 L/100 km)
, thanks to advancements like direct injection and lighter components.
Naturally aspirated engines offer slightly better economy, especially when paired with Subaru’s CVT system.
Safety Features
Subaru has a stellar reputation for safety, and the Legacy B4 has been no exception:
EyeSight Driver Assist
(available from the fourth generation onward):
Adaptive cruise control
Pre-collision braking
Lane departure warning and lane-keeping assist
AWD Stability:
Subaru’s AWD system provides superior grip and stability in all weather conditions, giving drivers confidence even on slippery roads.
Structural Strength:
Subaru’s
Global Platform
improves crash safety by enhancing chassis rigidity and absorbing impacts more effectively.
Advanced Airbags and Traction Control:
Every generation has seen incremental upgrades in passive and active safety features.
Unique Features of the Legacy B4
Symmetrical All-Wheel Drive:
One of the few sedans in its class to offer standard AWD, making it perfect for varying road conditions.
Boxer Engine Layout:
The horizontally opposed engine lowers the car’s center of gravity, improving balance and handling.
Sporty Design:
The B4 consistently features subtle but aggressive styling cues like larger wheels, a sportier grille, and aerodynamic enhancements.
SI-Drive:
Available on certain models, this system allows you to choose between
Intelligent
,
Sport
, and
Sport Sharp
modes for varied throttle response.
Comfortable Interior:
The B4 balances its sporty character with a refined and spacious cabin, featuring high-quality materials and advanced infotainment systems.
Driving Experience
The Legacy B4 offers a unique blend of comfort and performance:
Turbocharged versions
are quick off the line and deliver strong mid-range power, making them fun for spirited driving.
The
AWD system
ensures excellent grip, even in poor weather, while the
boxer engine
contributes to sharp and confident cornering.
On the other hand, naturally aspirated versions prioritize a smooth and quiet ride, ideal for daily commutes or long trips.
Conclusion
The Subaru Legacy B4 stands out as a sporty and practical sedan with a solid rally-inspired foundation. It’s versatile, offering both turbocharged excitement and naturally aspirated reliability, all wrapped in Subaru’s signature AWD capabilities. Over the years, it’s grown more refined and tech-packed, appealing to a broader audience.
Whether you’re looking for a stylish family car or a performance sedan with year-round capability, the Legacy B4 delivers a unique mix of comfort, safety, and driving enjoyment. It’s not just a car—it’s an experience.
Are you looking at buying new or used Subaru Legacy B4 in Kenya? Are you looking at selling your used Subaru Legacy B4 in Kenya? Do you want to know the prices of new or used Subaru Legacy B4 in Kenya? Do you want to know how to import Subaru Legacy B4 from Japan? Please visit our show room in Karen, Nairobi and our sales agents will guide you.
Below is a list of Subaru Legacy B4 for sale in Nairobi, Kenya and also others available in Japan. You can now buy and import year 2025, 2024, 2023, 2022, 2021, 2020, 2019, and 2018 Subaru Legacy B4 from Japan to Kenya.