2003 Subaru Impreza Cat-Back Exhausts
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Borla Cat-Back System 02-05 Subaru WRX 2.0L 4CYL TURBO AWD AT/MT 4DR/WAGON (14978)
Borla Cat-Back System 02-05 Subaru WRX 2.0L 4CYL TURBO AWD AT/MT 4DR/WAGON (14978)

Fits - 2003 Subaru Impreza

Pipe Size: 2.5"Tip Type: S RD HRL AC PHTip Exit: rearTip # 8Tip Dimensions: 4" RD x 8"
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$602.99
$674.99 (10.67% OFF)
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02-05 Subaru Impreza Turbo WRX/STI Black Canister Catback Exhaust System
02-05 Subaru Impreza Turbo WRX/STI Black Canister Catback Exhaust System

Fits - 2003 Subaru Impreza

The catback system is made stainless steel. All pipiing are mandrel bent with a high polished finish. Exhaust system comes with all the necessary hardware needed for installation. Improves HP with minimal noise. All our Performance Mufflers are made from the highest quality polished stainless steel. Designed and constructed to ...
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$169.95
$299.93 (43.34% OFF)
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02-05 Subaru Impreza Turbo WRX/STI 3
02-05 Subaru Impreza Turbo WRX/STI 3" Piping Catback Exhaust

Fits - 2003 Subaru Impreza

Made of SUS 304 Stainless with fully polished surface, CNC machined flanges and are mandrel bent. 25% lighter than OEM exhaust system. Improve up to 20 horse power with its straight-through design. Produce a sporty deep tone sound.Specially designed to reach the maximum performance, and have a perfect match ...
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$179.00
$257.40 (30.46% OFF)
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Bomz Racing Cat- Back Exhaust- 2001-2004 Subaru WRX JDM
Bomz Racing Cat- Back Exhaust- 2001-2004 Subaru WRX JDM

Fits - 2003 Subaru Impreza

MADE OF HIGH QUALITY T-304 STAINLESS STEEL - SUPER LIGHT WEIGHT. HIGH PERFORMANCE N1 STYLE CATBACK EXHAUST SYSTEM FEATURING PATENTED STRAIGHT THROUGH & MULTI-CORE TECHNOLOGY TO UNLEASH HIDDEN HORSE-POWER.
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$254.99
$299.99 (15.00% OFF)
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Buddy Club Spec IV Exhaust WRX 02-up
Buddy Club Spec IV Exhaust WRX 02-up

Fits - 2003 Subaru Impreza

Our RACING SPEC IV exhaust systems adheres to the same basic principles used in all of our RACING SPEC mufflers - straight through design and light-weight for efficient exhaust flow. Our RACING SPEC IV muffler has additional built in silencing cavities in the muffler, making it substantially quieter than our ...
Our Price
$609.96
$717.60 (15.00% OFF)
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Medalion Concept G  Cat-Back Exhaust System-02-06 Subaru Impreza WRX
Medalion Concept G Cat-Back Exhaust System-02-06 Subaru Impreza WRX

Fits - 2003 Subaru Impreza

Pipe Diameter:80 Tip Diameter:100
Our Price
$783.20
$890.00 (12.00% OFF)
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Medalion Touring Cat-Back Exhaust System-02-06 Subaru Impreza WRX
Medalion Touring Cat-Back Exhaust System-02-06 Subaru Impreza WRX

Fits - 2003 Subaru Impreza

Pipe Diameter:80 Tip Diameter:115
Our Price
$739.20
$840.00 (12.00% OFF)
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Subaru WRX 02-05 2.0L Cat-Back Exhaust System
Subaru WRX 02-05 2.0L Cat-Back Exhaust System

Fits - 2003 Subaru Impreza

1 cat-back exhaust system
Our Price
$207.50
$262.50 (20.95% OFF)
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02-03 Subaru Impreza WRX Non-Turbo Catback Exhaust System
02-03 Subaru Impreza WRX Non-Turbo Catback Exhaust System

Fits - 2003 Subaru Impreza

Full Stainless Steel Exhaust Comes with silencer (If applicable) Aggressive Sound Direct Bolt On Installation HP Gain From 5-15 Depending on the vehicle
Our Price
$427.34
$503.13 (15.06% OFF)
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Buddy Club Spec III Exhaust WRX Sti 03- up
Buddy Club Spec III Exhaust WRX Sti 03- up

Fits - 2003 Subaru Impreza

Buddy Club SPEC III exhaust systems are the lightest stainless-steel exhaust system on the market today. Its simple straight thru design creates an increase of exhaust gas velocity in order to enhance its efficiency. The resonator on the main pipe is specially designed to enhance torque in the low to ...
Our Price
$609.96
$717.60 (15.00% OFF)
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02-06 Subaru Impreza WRX Catback Exhaust System
02-06 Subaru Impreza WRX Catback Exhaust System

Fits - 2003 Subaru Impreza

Full Stainless Steel ExhaustComes with silencer (If applicable)Aggressive SoundDirect Bolt On InstallationHP Gain From 5-15 Depending on the vehicle
Our Price
$211.72
$215.63 (1.81% OFF)
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Megan Racing 02+ Impreza WRX Turbo Type Cat Back Systems
Megan Racing 02+ Impreza WRX Turbo Type Cat Back Systems

Fits - 2003 Subaru Impreza

Pipesize OD: 3" Tip Size: 4.5"Reduce the air flow restriction with precision built Megan Racing exhaustSignificantly increase horsepower,torque and throttle responseMaximumize the exhaust flow - improve car's efficiency and fuel economyMegan exhausts are engineered & designed in USAMandrel bent tubing to decrease the air flow restrictionAll mounting hardware is included
Our Price
$396.00
$495.00 (20.00% OFF)
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Invidia High Performance Racing Cat-Back Exhaust- 02-UP Subaru WRX STI
Invidia High Performance Racing Cat-Back Exhaust- 02-UP Subaru WRX STI

Fits - 2003 Subaru Impreza

SIZE PIPE: 76mm SIZE TIP: 101mm
Our Price
$594.99
$699.99 (15.00% OFF)
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Invidia High Performance Cat-Back Exhaust- 02-UP Subaru WRX/STI
Invidia High Performance Cat-Back Exhaust- 02-UP Subaru WRX/STI

Fits - 2003 Subaru Impreza

SIZE PIPE: 76mm SIZE TIP: 101mm
Our Price
$679.99
$799.99 (15.00% OFF)
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Buddy Club Pro Spec Exhaust WRX 02-up
Buddy Club Pro Spec Exhaust WRX 02-up

Fits - 2003 Subaru Impreza

Buddy Club Pro Spec is a super light weight and highly efficient muffler that is made to perform for circuit runs. In its street version, to optimize torque in the low to mid speed range, it is equipped with an efficient middle silencer (resonator). Pro Spec Mufflers were designed for ...
Our Price
$561.00
$660.00 (15.00% OFF)
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Skunk2 Mega Power RR Exhaust System-2002-05  WRX / WRX Sti
Skunk2 Mega Power RR Exhaust System-2002-05 WRX / WRX Sti

Fits - 2003 Subaru Impreza

Application:2002-05 WRX / WRX Sti Quantity:1
Our Price
$562.99
$619.29 (9.09% OFF)
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Tanabe Ultra Medalion Cat-Back Exhaust System--02-06 Subaru Impreza WRX
Tanabe Ultra Medalion Cat-Back Exhaust System--02-06 Subaru Impreza WRX

Fits - 2003 Subaru Impreza

Pipe Diameter:80 Tip Diameter:100
Our Price
$1152.00
$1280.00 (10.00% OFF)
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Invidia High Performance Cat-Back Exhaust- 02-UP Subaru WRX/STI G200 TitaniumTip
Invidia High Performance Cat-Back Exhaust- 02-UP Subaru WRX/STI G200 TitaniumTip

Fits - 2003 Subaru Impreza

SIZE PIPE: 76mm SIZE TIP: 125mm
Our Price
$747.99
$879.99 (15.00% OFF)
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Megan Racing 02-07 Impreza WRX/Sti Type 2 Black Cat Back Systems
Megan Racing 02-07 Impreza WRX/Sti Type 2 Black Cat Back Systems

Fits - 2003 Subaru Impreza

Pipesize OD: 3"Reduce the air flow restriction with precision built Megan Racing exhaustSignificantly increase horsepower,torque and throttle responseMaximumize the exhaust flow - improve car's efficiency and fuel economyMegan exhausts are engineered & designed in USAMandrel bent tubing to decrease the air flow restrictionAll mounting hardware is included
Our Price
$334.40
$418.00 (20.00% OFF)
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02-06 Subaru Impreza WRX Catback Exhaust System 3inch Inlet
02-06 Subaru Impreza WRX Catback Exhaust System 3inch Inlet

Fits - 2003 Subaru Impreza

Full Stainless Steel Exhaust 3 inch Inlet /4.5 inch OutletComes with silencer (If applicable)Aggressive SoundDirect Bolt On InstallationHP Gain From 5-15 Depending on the vehicle
Our Price
$297.50
$350.00 (15.00% OFF)
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Tanabe Concept G Blue Turbo-Back Exhaust System-02-06 Subaru Impreza WRX
Tanabe Concept G Blue Turbo-Back Exhaust System-02-06 Subaru Impreza WRX

Fits - 2003 Subaru Impreza

Piping Diameter:80 Tip Diameter:100 (Removeable Silencer Included)
Our Price
$1071.00
$1190.00 (10.00% OFF)
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Borla Cat-Back System 02-07 Subaru WRX 2.0L/2.5L 4CYL TURBO AWD AT/MT 4DR SEDAN/WAGON (140053)
Borla Cat-Back System 02-07 Subaru WRX 2.0L/2.5L 4CYL TURBO AWD AT/MT 4DR SEDAN/WAGON (140053)

Fits - 2003 Subaru Impreza

Pipe Size: 3"Tip Type: D RD RL ACTip Exit: rearTip # 18Tip Dimensions: 3.19" RD x 6"
Our Price
$679.99
$760.99 (10.64% OFF)
Product Details
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02-05 Subaru Impreza Turbo WRX/STI Black Canister Catback Exhaust System
02-05 Subaru Impreza Turbo WRX/STI Black Canister Catback Exhaust System

Fits - 2003 Subaru Impreza

The catback system is made stainless steel. All pipiing are mandrel bent with a high polished finish. Exhaust system comes with all the necessary hardware needed for installation. Improves HP with minimal noise. All our Performance Mufflers are made from the highest quality polished stainless steel. Designed and ...
Our Price
$189.95
$344.93 (44.93% OFF)
Product Details
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02 03 04 05 Impreza Wrx Catback Exhaust Muffler Turbo
02 03 04 05 Impreza Wrx Catback Exhaust Muffler Turbo

Fits - 2003 Subaru Impreza

Contructed with full stainless steel T-304Reduce the air flow restrictionSignificantly increase horsepower,torque and throttle responseMaximumize the exhaust flow - improve car's efficiency and fuel economyMandrel bent tubing to decrease the air flow restrictionAll mounting hardware is included
Our Price
$140.00
$182.00 (23.08% OFF)
Product Details
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Megan Racing 02-07 WRX/STI OE-RS Cat Back Systems
Megan Racing 02-07 WRX/STI OE-RS Cat Back Systems

Fits - 2003 Subaru Impreza

Pipesize OD: 3" Tip Size: Single 4"Reduce the air flow restriction with precision built Megan Racing exhaustSignificantly increase horsepower,torque and throttle responseMaximumize the exhaust flow - improve car's efficiency and fuel economyMegan exhausts are engineered & designed in USAMandrel bent tubing to decrease the air flow restrictionAll mounting hardware is ...
Our Price
$396.00
$495.00 (20.00% OFF)
Product Details
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Agency Power Subaru WRX / STi Titanium Catback Exhaust
Our Price
$850.00
$1020.00 (16.67% OFF)
Product Details
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Borla Cat-Back System 02-05 Subaru Impreza 2.0L 4CYL TURBO AWD AT/MT 4DR/WAGON (14978)
Borla Cat-Back System 02-05 Subaru Impreza 2.0L 4CYL TURBO AWD AT/MT 4DR/WAGON (14978)

Fits - 2003 Subaru Impreza

Pipe Size: 2.5"Tip Type: S RD HRL AC PHTip Exit: rearTip # 8Tip Dimensions: 4" RD x 8"
Our Price
$602.99
$674.99 (10.67% OFF)
Product Details
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02-05 Subaru Impreza WRX Turbo Burnt Tip Black Catback Exhaust
02-05 Subaru Impreza WRX Turbo Burnt Tip Black Catback Exhaust

Fits - 2003 Subaru Impreza

This Exhaust system comes with all the necessary hardware needed for installation. All pipiing are mandrel bent with a high polished finish. Improves HP with minimal noise. All our Performance Mufflers are made from the highest quality polished stainless steel. Our unique and exclusive muffler core makes ...
Our Price
$179.95
$374.93 (52.00% OFF)
Product Details
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DC Sports Subaru WRX/ WRX Sti 02-07 Single Canister System, Stainless Steel Cat-Back Exhaust
DC Sports Subaru WRX/ WRX Sti 02-07 Single Canister System, Stainless Steel Cat-Back Exhaust

Fits - 2003 Subaru Impreza

SINGLE CANISTER SYSTEM, STAINLESS STEEL CAT-BACK EXHAUST-(Sample Picture Shown, The actual product may differ from image)
Our Price
$440.90
$648.38 (32.00% OFF)
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02-05 Subaru Impreza Turbo WRX/STI Catback Exhaust System with Burnt Tip
02-05 Subaru Impreza Turbo WRX/STI Catback Exhaust System with Burnt Tip

Fits - 2003 Subaru Impreza

The catback system is made stainless steel. All pipiing are mandrel bent with a high polished finish. Exhaust system comes with all the necessary hardware needed for installation. Improves HP with minimal noise. All our Performance Mufflers are made from the highest quality polished stainless steel. Designed and ...
Our Price
$189.95
$314.93 (39.69% OFF)
Product Details
Add To Cart
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Cat Back Exhaust

Featured Cat Back Exhausts Products


  When considering serious 2003 Subaru Impreza cat back exhausts upgrades for their vehicles, many drivers focus on installing the most effective 2003 Subaru Impreza cat back exhaust system. A catback exhaust is the portion of an exhaust setup that contains all the components from the rear of the catalytic converter on down. Finely tuned 2003 Subaru Impreza cat back exhausts serve as excellent 2003 Impreza racing exhausts, and with all of the proper parts like universal mufflers and sleek tail pipes included, the setup can provide the sound and emissions flow a serious driver would want.

2003 Subaru Impreza Cat Back Exhaust 2003 Subaru Impreza Megan Racing Cat Back Exhaust 2003 Subaru Impreza Cat-Back Exhausts 2003 Subaru Impreza CatBack Exhausts


2003 Subaru Impreza Catalytic converters are the starting points for 2003 Subaru Impreza cat back exhaust upgrades, and for good reason. These 2003 Subaru Impreza converters help to make emissions cleaner and less polluting, and can correct problems caused by unruly 2003 Subaru Impreza car exhausts. While mufflers focus on sound control and 2003 Subaru Impreza exhaust pipes and tips are often upgraded for their looks more than anything, entire 2003 Subaru Impreza cat back exhaust system upgrades can really affect the whole vehicle in a positive way, making for a cleaner, better looking exhaust array.


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Cat Back Exhaust, Performance Exhausts & more

44 reviews 4.5 out of 5 stars

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