Collection: Cooling Upgrades For Subaru Legacy B4 BN
-

Torque Solution Multi-Layer Stainless Gasket | Subaru WRX/Outback/Legacy (14-23) (TS-EG-765)
Vendor:Torque SolutionRegular price $22.22 USDRegular priceUnit price / per$27.77 USDSale price $22.22 USDSale -
AEM DryFlow Air Filter | 2022+ Subaru WRX (28-50064)
Vendor:AEM InductionRegular price $57.00 USDRegular priceUnit price / per$62.99 USDSale price $57.00 USDSale -
aFe Magnum FLOW Pro Dry S Panel Air Filter | Multiple Subaru Fitments (31-10161)
Vendor:aFeRegular price $66.73 USDRegular priceUnit price / per$76.00 USDSale price $66.73 USDSale -
aFe Pro Dry S Air Filter | Subaru Crosstrek 18-21 (31-10327)
Vendor:aFeRegular price $64.38 USDRegular priceUnit price / per$76.00 USDSale price $64.38 USDSale -
AEM 17-18 Subaru Legacy H4-2.5L F/I Cold Air Intake | Subaru Legacy (17-18) (21-856C)
Vendor:AEM InductionRegular price $380.07 USDRegular priceUnit price / per$419.99 USDSale price $380.07 USDSale -
Turbo XS Dry Element Drop-In Air Filter | Subaru WRX / WRX STI / Forester / Legacy / Outback (08-21) / 09-10 (AF-01)
Vendor:Turbo XSRegular price $50.19 USDRegular priceUnit price / per$72.00 USDSale price $50.19 USDSale -
aFe Silver Bullet Throttle Body Spacer Kit | Subaru Outback H6 3.6L (46-30006)
Vendor:aFeRegular price $124.28 USDRegular priceUnit price / per$139.00 USDSale price $124.28 USDSale -
COBB Stage 1 Power Package | Subaru Ascent (19-22) / Outback/Legacy XT (20-22) / Outback Wilderness (22) (SUB0050010)
Vendor:COBBRegular price $825.00 USDRegular priceUnit price / per$825.00 USDSale price $825.00 USD -
COBB 3" Aluminum Intake Tube | Subaru Outback XT/Wilderness/Legacy XT (20-25) (745200)
Vendor:COBBRegular price $190.00 USDRegular priceUnit price / per$190.00 USDSale price $190.00 USD -
COBB High Flow Panel Filter | Subaru WRX (22-25) Ascent/Legacy XT/Outback XT (20-25) (716110)
Vendor:COBBRegular price $90.00 USDRegular priceUnit price / per$90.00 USDSale price $90.00 USD -
COBB EJ TGV Shaft Seal Kit | Subaru STI (07-21)/WRX (08-14)/Forester XT (09-13)/Legacy GT (07-12)/Outback XT (07-09)/Impreza 2.5GT (08-10) (443700)
Vendor:COBBRegular price $75.00 USDRegular priceUnit price / per$75.00 USDSale price $75.00 USD -
COBB SF Air Intake Box w/ SS HW | Subaru WRX/STI (08-14)/Legacy GT (05-09) (724160)
Vendor:COBBRegular price $205.00 USDRegular priceUnit price / per$205.00 USDSale price $205.00 USD -

aFe Magnum FLOW OE Replacement Pro 5R Air Filter | Subaru WRX/ Crosstrek/ Forester (22+) (30-10327)
Vendor:aFeRegular price $62.34 USDRegular priceUnit price / per$71.00 USDSale price $62.34 USDSale -
aFe Takeda Stage-2 Cold Air Intake | Subaru Outback/Legacy 09-19 (TR-4303P)
Vendor:aFeRegular price $361.76 USDRegular priceUnit price / per$410.00 USDSale price $361.76 USDSale -
aFe Carbon Cabin Air Filter | Land Rover/Subaru/Lexus/Toyota (14-22/10-19/04-22) (35-10003C)
Vendor:aFeRegular price $22.44 USDRegular priceUnit price / per$23.00 USDSale price $22.44 USDSale -
K&N Filters Washable Cabin Air Filter | 2023+ Toyota GR Corolla (VF2054)
Vendor:K&N EngineeringRegular price $39.80 USDRegular priceUnit price / per$47.99 USDSale price $39.80 USDSale -
Perrin PSP-OIL-201 CVT Oil Cooler Kit | Subaru Legacy/Outback (14-20/22-26) (SPF-OIL-201)
Vendor:Perrin PerformanceRegular price $459.75 USDRegular priceUnit price / per$613.00 USDSale price $459.75 USDSale -
Subaru WRX/STI Thermostat By Mishimoto (WRX 02-07 / STi 04-07)
Vendor:MishimotoRegular price $64.95 USDRegular priceUnit price / per$71.00 USDSale price $64.95 USDSale -
Mishimoto Racing Thermostat | 2015+ Subaru WRX / 2014+ FXT (MMTS-WRX-15)
Vendor:MishimotoRegular price $68.95 USDRegular priceUnit price / per$76.00 USDSale price $68.95 USDSale -
aFe Magnum Flow Pro 5R Air Filter | Subaru WRX/STI (08-14) (30-10161)
Vendor:aFeRegular price $62.34 USDRegular priceUnit price / per$71.00 USDSale price $62.34 USDSale
Optimize Cooling Upgrades for Your Subaru Legacy B4 BN
Maintaining optimal engine temperature is crucial for the Subaru Legacy B4 BN’s performance and reliability. Our collection of cooling upgrades is tailored specifically for this model, offering parts that enhance heat management under both spirited driving and everyday conditions. These components help prevent overheating and ensure consistent power delivery.
Why Upgrade Cooling Components on the Subaru Legacy B4 BN?
Stock cooling systems can struggle under increased engine loads or aggressive driving, leading to elevated temperatures and potential performance loss. Upgrading to high-efficiency radiators, improved fans, and durable coolant hoses helps maintain stable engine temperatures. This reduces thermal stress and supports long-term engine health.
- Improved heat dissipation for demanding driving conditions
- Enhanced durability with aftermarket materials and design
- Better coolant flow and temperature regulation
Key Cooling Parts to Consider for Your Legacy B4 BN
Choosing the right cooling upgrades involves understanding each component’s role. Radiators increase heat exchange capacity, while upgraded fans improve airflow. Performance coolant hoses and thermostats optimize coolant circulation and temperature control. Selecting quality parts designed for your Legacy B4 BN ensures seamless integration and reliable operation.
How to Choose and Install Cooling Upgrades for Your Subaru Legacy B4 BN
When selecting cooling parts, prioritize fitment confidence and compatibility with your vehicle’s existing systems. Consider your driving style and conditions to determine which upgrades will deliver the best balance of cooling efficiency and durability. Shop our curated collection of cooling upgrades at WheelFlip to keep your Legacy B4 BN running cooler and stronger on every drive.














