Collection: Exhaust System Upgrades For Subaru Legacy B4 BL
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Invidia 05+ Subaru Legacy GT Stainless Steel Quad Tip Cat-back Exhaust
Vendor:InvidiaRegular price $1,361.22 USDRegular priceUnit price / per$1,944.60 USDSale price $1,361.22 USDSale -
Torque Solution Stock DP to Aftermarket 3" Catback Adapter | Multiple Fitments (TS-SU-479)
Vendor:Torque SolutionRegular price $48.88 USDRegular priceUnit price / per$61.10 USDSale price $48.88 USDSale -
Magnaflow California Grade Direct-Fit Catalytic Converter | Saab 9-2X 2005 (5411026)
Vendor:MagnaflowRegular price $1,092.84 USDRegular priceUnit price / per$1,398.00 USDSale price $1,092.84 USDSale -
Magnaflow California Grade Universal Catalytic Converter 2.50in | California (5571206)
Vendor:MagnaflowRegular price $348.33 USDRegular priceUnit price / per$446.00 USDSale price $348.33 USDSale -

MagnaFlow 2.5L Subaru WRX Catalytic Converter | Subaru Impreza/Forester/Outback (92-21) (24416)
Vendor:MagnaflowRegular price $719.98 USDRegular priceUnit price / per$921.00 USDSale price $719.98 USDSale -
Mishimoto OEM 3in Downpipe to Cat-Back Adapter | Subaru WRX/WRX STI/Legacy (MMEXH-ADAP-SDAE)
Vendor:MishimotoRegular price $64.95 USDRegular priceUnit price / per$71.00 USDSale price $64.95 USDSale -
MagnaFlow Converter Direct Fit 06-11 Subaru Impreza 2.5L
Vendor:MagnaflowRegular price $875.00 USDRegular priceUnit price / per$875.00 USDSale price $875.00 USD -
Magnaflow Direct-Fit Replacement Exhaust System | Subaru Legacy (05-09) (106-0069)
Vendor:MagnaflowRegular price $580.71 USDRegular priceUnit price / per$617.00 USDSale price $580.71 USDSale -
Magnaflow 93235 DirectFit Converter for Subaru Impreza/Forester/Legacy/Outback
Vendor:MagnaflowRegular price $754.00 USDRegular priceUnit price / per$754.00 USDSale price $754.00 USD -
Magnaflow 51603 DirectFit Converter For Subaru Outback 3.0L (05-07)
Vendor:MagnaflowRegular price $954.00 USDRegular priceUnit price / per$954.00 USDSale price $954.00 USD -
Magnaflow 24827 DirectFit Converter For Subaru Legacy 2.5L
Vendor:MagnaflowRegular price $381.00 USDRegular priceUnit price / per$381.00 USDSale price $381.00 USD -
Magnaflow 51864 DirectFit Converter D&S For Subaru Outback/Legacy 04-05
Vendor:MagnaflowRegular price $1,104.00 USDRegular priceUnit price / per$1,104.00 USDSale price $1,104.00 USD -
Magnaflow 51827 DirectFit Cat Converter For Subaru Legacy 06-08 2.5L
Vendor:MagnaflowRegular price $400.00 USDRegular priceUnit price / per$400.00 USDSale price $400.00 USD -
Magnaflow Direct-Fit Rear Muffler Kit | Subaru Legacy/Outback (00-04) (108-0093)
Vendor:MagnaflowRegular price $248.40 USDRegular priceUnit price / per$263.92 USDSale price $248.40 USDSale -

MagnaFlow 2.25in California Grade Universal OBDII Front Catalytic Converter | California (444105)
Vendor:MagnaflowRegular price $278.33 USDRegular priceUnit price / per$356.00 USDSale price $278.33 USDSale -
Magnaflow Direct-Fit Rear Muffler Kit | Subaru Outback (05-09) (108-0080)
Vendor:MagnaflowRegular price $224.20 USDRegular priceUnit price / per$238.21 USDSale price $224.20 USDSale -
Invidia 08+ Subaru WRX/ 05-09 STI / 02 Legacy High Flow Cat Extra 02 Bung
Vendor:InvidiaRegular price $924.00 USDRegular priceUnit price / per$1,428.00 USDSale price $924.00 USDSale -
BLOX Racing Turbo to Downpipe MLS Gasket (BXFL-50013)
Vendor:BLOX RacingRegular price $10.35 USDRegular priceUnit price / per$16.00 USDSale price $10.35 USDSale -
Borla Header | 02-14 WRX / 04-18 STI / 05-12 LGT (17217)
Vendor:BorlaRegular price $936.99 USDRegular priceUnit price / per$1,048.99 USDSale price $936.99 USDSale -

COBB 2" SS Uppipe | Subaru WRX (06-14)/STI (04-21)/Forester XT/Legacy GT/Outback XT (06-09) (512265)
Vendor:COBBRegular price $275.00 USDRegular priceUnit price / per$275.00 USDSale price $275.00 USD
Exhaust System Upgrades for Subaru Legacy B4 BL: Enhance Power and Sound
Unlock the full potential of your Subaru Legacy B4 BL with our specialized exhaust system upgrades. Designed specifically for this model, our collection offers performance-driven components that improve power delivery, throttle response, and exhaust tone to elevate your driving experience.
Why Upgrade Your Subaru Legacy B4 BL Exhaust System?
Upgrading your exhaust system is one of the most effective ways to enhance your Legacy’s performance and sound. By replacing restrictive stock parts with high-flow components, you can increase horsepower and torque while achieving a more aggressive and refined exhaust note. These upgrades also improve throttle response and engine efficiency, giving your vehicle a more dynamic feel on the road.
- Improved airflow reduces backpressure for better engine breathing
- Enhanced exhaust tone tailored to your driving preferences
- Durable materials ensure long-lasting performance and reliability
Key Components in Subaru Legacy B4 BL Exhaust Upgrades
This collection includes a variety of aftermarket exhaust parts engineered for perfect fitment and performance. From high-flow mufflers and downpipes to complete cat-back systems, each component is designed to complement your Legacy’s character while boosting efficiency and sound quality. Choosing the right parts depends on your goals, whether it’s maximizing power gains or achieving a balanced exhaust note.
How to Choose the Right Exhaust Upgrade for Your Legacy B4 BL
When selecting exhaust upgrades, consider your driving style and performance goals. For aggressive sound and maximum flow, a cat-back system paired with a high-flow downpipe is ideal. If you prefer subtle improvements, a performance muffler can enhance tone without overwhelming volume. Shop our curated collection at WheelFlip to find reliable, fitment-specific exhaust parts that bring out the best in your Subaru Legacy B4 BL.















