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Muffler for 2003 Subaru Impreza

We have 39 Items In-stock. Select your vehicle's Submodel to continue.

Bosal Aluminized steel OE replacement Muffler

Bosal muffler is made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. It is precision-manufactured to high tolerances for long life.

Features:
  • Aluminized steel muffler material
  • OE-style sound
Bosal Muffler, Rear, Aluminized Steel, Natural
$128.77 List Price $151.95 Save $23.18 Availability: In Stock
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  • SKU#: BO278761
  • Product Fit: Direct fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: 1-2 business days
Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | RS, Outback, TS

Walker Quiet-Flow3 Muffler

Walker's Quiet-flow3 muffler features a sophisticated internal routing and tuning technologies for superior flow and premium OE-style sound. Its internal partition baffles and spun-locked heads help improve structural support.

Features
  • OE-style sound
  • Aluminized steel muffler material
Walker Muffler, Aluminized Steel, Natural, Direct Fit
$95.15 List Price $384.84 Save $289.69 Availability: In Stock
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  • SKU#: WK55363
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | Outback, RS, TS
Walker Muffler, Walker Quiet-Flow3, Aluminized Steel, Natural
$140.32 List Price $192.97 Save $52.65 Availability: In Stock
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  • SKU#: WK54563
  • Product Fit: Direct fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | Outback, RS, TS

Flowmaster - 40 Series Original Mufflers

FLOWMASTER – 40 SERIES ORIGINAL MUFFLERS

Flowmaster’s 40 Series Original mufflers turn give your ride that rich muscle car rumble and turn it into a performance powerhouse with an aggressive, deep tone that will make you smile as you put the pedal to the metal. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Great for muscle cars or vehicles that need a single exhaust
  • Backed by a lifetime warranty for stainless/3 years for aluminized steel
  • Fully MIG-welded for maximum strength
  • Comes in 16-gauge aluminized steel or stainless steel
  • Quick and easy installation
  • Very aggressive tone
  • Improves torque and horsepower
  • Come in single or dual pipe style
  • Dyno-tested
Flowmaster Muffler, Flowmaster 40 Series Original, Aluminized Steel, Gray
$77.50 List Price $100.29 Save $22.79 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: F1342441
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | RS, Outback, TS
  • 4 Cyl 2.0L | WRX
Flowmaster Muffler, Flowmaster 40 Series Original, Stainless Steel, Gray
$82.99 List Price $107.40 Save $24.41 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: F138042441
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Notes: Minor Modifications
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Warranty: Lifetime Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | RS, Outback, TS
  • 4 Cyl 2.0L | WRX

Flowmaster - Super 44 Series Delta Flow Mufflers

FLOWMASTER – SUPER 44 SERIES DELTA FLOW MUFFLERS

Flowmaster’s Super 44 Series Delta Flow mufflers will make you stand out in a crowd (but might not make you a favorite with your neighbors) – surely one of the reasons they’re a top choice for high horsepower performance vehicles. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Increases torque and horsepower
  • 3-year warranty for aluminized steel, lifetime warranty for stainless steel
  • Fully MIG-welded for maximum strength
  • Come in stainless steel and 16-gauge aluminized steel
  • Distinct, super aggressive tone – the most aggressive of Flowmaster’s line-up
  • Doesn’t have any internal packing that can be blown out
  • Fabricated utilizing patented Delta Flow process and 2-chamber design
  • Quick and easy installation
  • Primarily designed for and used on high horsepower performance vehicles
  • Dyno-tested
Flowmaster Muffler, Flowmaster Super 44 Series, Aluminized Steel, Black
$79.95 List Price $103.47 Save $23.52 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: F13942446
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Notes: Minor Modifications
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.0L | WRX
Rating: (see review/s)

"I had Midas Muffeler install the Super 44 Flowmaster Series on My 1998 Grand Marquis. It sounds tough when you start the engine. Not too loud or obnoxious just right. Does not rattle inside the vehicle. When you cruising its very low and deep can barely hear it , but you know its there. I was told to go with the Delta flow 50 series which would have been too quiet and a waste of money. If you have a grand marquis get the super 44 flowmaster series. Deep , rich sound, not too agressive. Perfect 10!!" posted by: buddy810 on December 26, 2007

Flowmaster Muffler, Flowmaster Super 44 Series, Stainless Steel, Black
$89.99 List Price $116.46 Save $26.47 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
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)
  • SKU#: F13842446
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Warranty: Lifetime Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.0L | WRX
Rating: (see review/s)

"HAD TO RETURN THE PRODUCT BECAUSE INLET AND OUTLET WERE WRONG. GOT RIGHT PRODUCT, AND I LOVE IT." posted by: DOC on July 18, 2011

Flowmaster - 40 Series Delta Flow Mufflers

FLOWMASTER – 40 SERIES DELTA FLOW MUFFLERS

Flowmaster’s 40 Series Delta Flow mufflers give your daily driver a noticeable edge with a deep, aggressive tone while still keeping it quieter on the inside. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Increases torque and horsepower
  • 3-year warranty for aluminized steel, lifetime warranty for stainless steel
  • Fully MIG-welded for maximum strength
  • Come in stainless steel and 16-gauge aluminized steel
  • Distinct, aggressive tone with reduced interior sound
  • Fabricated utilizing patented Delta Flow process and 2-chamber design
  • Quick and easy installation
  • For passenger cars
  • Dyno-tested
Flowmaster Muffler, Flowmaster 40 Series Delta Flow, Stainless Steel, Gray
$102.99 List Price $133.28 Save $30.29 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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)
  • SKU#: F13842441
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Notes: Minor Modifications
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Warranty: Lifetime Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | RS, Outback, TS
  • 4 Cyl 2.0L | WRX
Flowmaster Muffler, Flowmaster 40 Series Delta Flow, Aluminized Steel, Gray
$89.99 List Price $116.46 Save $26.47 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: F13942441
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered
  • Notes: Turndown tip
  • Outlet Location: Center
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 19 in.
  • Tip Finish: Polished
  • Tip Material: Stainless steel
  • Warranty: 3-year Flowmaster limited warranty
  • Width: 9.75 in.
see more Fits the following 2003 Subaru Impreza submodels:
  • 4 Cyl 2.5L | RS, Outback, TS
  • 4 Cyl 2.0L | WRX

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