Collection: Engine Upgrades For Subaru WRX S4 VB
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COBB LF Bypass Valve | Subaru WRX (02-07) / STI (04-21) / Forester XT (06-08) (712665)
Vendor:COBBRegular price $375.00 USDRegular priceUnit price / per$375.00 USDSale price $375.00 USD -
COBB Pitch Stop Mount w/ Bushings | Subaru WRX/STI/LGT/FXT (02-25) (862001)
Vendor:COBBRegular price $125.00 USDRegular priceUnit price / per$125.00 USDSale price $125.00 USD -
COBB Aluminum Alternator Cover | Subaru WRX (08-14) / STI (08-21) (815055)
Vendor:COBBRegular price $105.00 USDRegular priceUnit price / per$105.00 USDSale price $105.00 USD -
COBB 2.5" Cold Pipe Kit | Subaru WRX (15-21) (741500-C)
Vendor:COBBRegular price $480.00 USDRegular priceUnit price / per$480.00 USDSale price $480.00 USD -
COBB 2.5" Hot Pipe Kit | Subaru WRX (15-21) (741500-H)
Vendor:COBBRegular price $370.00 USDRegular priceUnit price / per$370.00 USDSale price $370.00 USD -
COBB 24"x11"x4" FMIC Core Black Bar & Plate | Subaru WRX/STI (15-21) (716500-BK)
Vendor:COBBRegular price $1,150.00 USDRegular priceUnit price / per$1,150.00 USDSale price $1,150.00 USD -
COBB 24"x11"x4" FMIC Core Silver Bar & Plate | Subaru WRX/STI (15-21) (716500-SL)
Vendor:COBBRegular price $1,150.00 USDRegular priceUnit price / per$1,150.00 USDSale price $1,150.00 USD -
COBB 1050x Top Feed Fuel Injectors | Subaru WRX (02-14) / WRX STI (07-21) / Legacy GT / Forester XT (312150)
Vendor:COBBRegular price $625.00 USDRegular priceUnit price / per$625.00 USDSale price $625.00 USD -
DeatschWerks 22-24 Subaru WRX / 21-24 BRZ/GR86 DW300C Series 340lph Compact Fuel Pump W/ Install Kit
Vendor:DeatschWerksRegular price $189.00 USDRegular priceUnit price / per$189.00 USDSale price $189.00 USD -
DeatschWerks Toyota / Subaru Performance In-Tank Regulator - High Performance 4.5 BAR
Vendor:DeatschWerksRegular price $35.10 USDRegular priceUnit price / per$39.00 USDSale price $35.10 USDSale -
DeatschWerks 12+ Subaru BRZ/12+ Scion FRS / 15 WRX DW65C 265lph Compact In-Tank Fuel Pump
Vendor:DeatschWerksRegular price $135.15 USDRegular priceUnit price / per$159.00 USDSale price $135.15 USDSale -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1000cc Injectors
Vendor:DeatschWerksRegular price $619.00 USDRegular priceUnit price / per$619.00 USDSale price $619.00 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 750cc Injectors
Vendor:DeatschWerksRegular price $599.00 USDRegular priceUnit price / per$599.00 USDSale price $599.00 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1200cc Injectors
Vendor:DeatschWerksRegular price $699.00 USDRegular priceUnit price / per$699.00 USDSale price $699.00 USD -
HKS Super SQV 4 BOV w/ Recirc Kit | Subaru WRX STI VAB/GRB/GVB (08-21) (71008-AF013V)
Vendor:HKSRegular price $434.82 USDRegular priceUnit price / per$462.00 USDSale price $434.82 USDSale -
HKS Fine Tune V-Belt 5PK875 | Subaru STI/WRX (08-21/14) (24996-AK012)
Vendor:HKSRegular price $54.35 USDRegular priceUnit price / per$55.00 USDSale price $54.35 USDSale -
HKS SSQV4 Blow Off Valve | Subaru WRX STI (08-21) (71008-AF013)
Vendor:HKSRegular price $408.94 USDRegular priceUnit price / per$434.50 USDSale price $408.94 USDSale -
DeatschWerks 08-21 Subaru WRX/STI X2 Series Fuel Pump Module w/ Dual DW300 Pumps
Vendor:DeatschWerksRegular price $593.10 USDRegular priceUnit price / per$659.00 USDSale price $593.10 USDSale -
HKS Fine Tune Upgraded Timing Belt | Subaru WRX/STI/Legacy GT/Forester XT (24999-AF001)
Vendor:HKSRegular price $286.59 USDRegular priceUnit price / per$290.00 USDSale price $286.59 USDSale -
DeatschWerks 05-09 Subaru Legacy GT / 08-14 WRX / 08-21 STI DW430C 430lph Compact Fuel Pump
Vendor:DeatschWerksRegular price $186.15 USDRegular priceUnit price / per$219.00 USDSale price $186.15 USDSale
Engine Upgrades for Subaru WRX S4 VB to Boost Performance and Reliability
Unlock the full potential of your Subaru WRX S4 VB with engine upgrades tailored specifically for your model. This collection focuses on components designed to enhance power delivery, throttle response, and engine efficiency, helping you achieve a more dynamic and reliable driving experience.
What are the key benefits of upgrading your WRX S4 VB engine components?
Upgrading engine parts on your WRX S4 VB can lead to noticeable improvements in performance and durability. Enhanced intakes and exhaust systems optimize airflow, while cooling upgrades help maintain ideal operating temperatures under demanding conditions. Together, these modifications support smoother power delivery and reduce the risk of overheating during spirited driving.
- Improved horsepower and torque through better airflow management
- Enhanced throttle response for quicker acceleration
- Increased engine reliability with upgraded cooling solutions
- Reduced turbo lag and more consistent boost control
How to choose the right engine upgrades for your Subaru WRX S4 VB?
Selecting the appropriate engine parts depends on your driving goals and existing setup. Consider whether you want to focus on power gains, reliability, or a balanced approach. Performance intakes and exhaust components are great starting points for airflow improvements, while turbo and boost management parts help optimize forced induction efficiency. Don’t overlook engine mounts and hardware, which ensure stability and reduce drivetrain vibrations.
Supporting modifications and fitment tips for WRX S4 VB engine upgrades
Proper installation and complementary upgrades are essential to maximize the benefits of your engine parts. Upgrading your cooling system can prevent heat soak during extended drives, and pairing turbo components with reliable boost controllers ensures consistent performance. Shop this collection at WheelFlip to find quality aftermarket parts designed with fitment confidence for your Subaru WRX S4 VB.














