2003 Subaru Impreza Performance and Racing Products

Essential 2003 Subaru Impreza Performance and Racing Products

DC Sports – Polished Stainless Steel Down-Pipe – Fits 02-07 WRX, STI, 05-06 92X Aero (Part No.SDP4301B)

Polished Stainless Steel Down-Pipe - Fits 02-07 WRX, STI, 05-06 92X Aero

from

$364.49
DC Sports competition pipes delete the catalytic to eliminate restriction in the exhaust path and are Dyno tuned to deliver incredible performance gains for your factory turbocharged vehicle. Compatible with factory components no modifications necessary. Dyno tuned and tested for maximum performance. Available in 100% 304 polished stainless steel (including flanges) For off-road use only

Product Features:
  • off-road race use only
  • Reduce back pressure
  • replaces cats and connector pipes with 3in piping
  • Constructed of polished T304ss
  • direct bolt-on replacement part
  • OEM replacement, direct bolt on installation
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Energy Suspension – Trailing Arm Bushing Set (Part No.19.7101R)

Trailing Arm Bushing Set

from

$76.99
Product Features:
  • Help Maintain Proper Rear Toe and Caster
  • During High Performance Driving Conditions
  • Important When Using Larger Wheels/Tires
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K&N – Cold Air Intake System with Million Mile air filter. Guaranteed to increase Horsepower! (Part No.57A-6018)

Cold Air Intake System with Million Mile air filter. Guaranteed to increase Horsepower!

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$349.99
K&N Apollo Cold Air Induction Systems incorporate a washable/reusable K&N High-Flow Air Filter within a protective shell. They come with custom mounting hardware to fit specific vehicle applications. The Apollo’s shell reduces heat build-up and feeds cool air into your engine, resulting in improved volumetric efficiency and increased power gains. Apollo Cold Air Induction Systems allow for updating your vehicle’s intake system while retaining a closed environment.

Product Features:
  • Replacement Filter: RC-5052
  • Outer shell keeps engine heat out
  • Fresh air inlet
  • Washable reusable air filter
  • Outstanding air filtration
  • Product might not be available in all states due to local laws.
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K&N – Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter (Part No.69-8004TTK)

Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter

from

$349.99
The K&N 69-8004TTK Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru Impreza and WRX models. The restrictive factory air filter and air intake housing are replaced by the K&N Typhoon air intake which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. This allows your engine to inhale a larger amount of air than the factory air intake. More air means more usable power and acceleration throughout the engine’s RPM range. The 69-8004TTK air intake comes with an ultra-lightweight carbon fiber topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through the intake tube into the engine’s throttle body for a guaranteed power gain. The intake tube has an attractive textured black finish that’s made to last and accommodates the factory mass air sensor. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a couple of screwdrivers, a ratchet set and some Allen wrenches. Some Typhoon air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.

Product Features:
  • GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
  • BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
  • IMPROVED ENGINE SOUND: Hear the power under the hood.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America.
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Flowmaster Inc. – Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.942446)

Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$113.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we’ve ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.42441)

40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$99.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound (Part No.12514310)

DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound

from

$225.99
dBX series mufflers – this Laminar Flow internal configuration muffler features the revolutionary HP core design delivering excellent sound control for a wide variety of engine types where vehicle under-chassis space is limited. Utilizing cool shell technology to minimize radiant heat from the muffler body, they are perfect for sport compact imports as well as muscle cars and other performance applications. Constructed with 409S stainless steel internal components and wrapped with a proprietary insulation material and finally a polishable 304 stainless steel casing, these mufflers are as attractive as they are functional delivering a moderate to aggressive tone.
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Airaid – Air Filter (Part No.850-031)

Air Filter

from

$65.99
304 stainless steel mesh. 5 layer construction. Most durable filters in the industry. Outperforms the others in clean air testing. Assures cleanest air possible from washable filter. Provides balance between air flow and peak filtration. Lifetime no hassle warranty.

Product Features:
  • Multi-Layer Construction
  • Most Durable Filters In The Industry
  • Outperforms The Others In Clean Air Testing
  • Assures Cleanest Air Possible From Washable Filter
  • Washable And Reusable
  • Made In The USA
  • Lifetime No Hassle Warranty
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2154)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$64.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2232)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$69.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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Energy Suspension – Control Arm Bushing Set (Part No.19.3101G)

Control Arm Bushing Set

from

$96.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
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NOS/Nitrous Oxide Systems – Import Nitrous System Dry Design (Part No.05122NOS)

Import Nitrous System Dry Design

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$1055.99
Import Nitrous System Dry Design

Energy Suspension – SwyBarBshKt (Part No.19.5104R)

SwyBarBshKt

from

$40.99
SwyBarBshKt

Energy Suspension – Sway Bar Bushing Set (Part No.19.5101G)

Sway Bar Bushing Set

from

$24.99
Energy Suspension performance polyurethane sway bar bushings and end links offer the greatest improvement in performance among all the products Energy offers. They make a vehicle’s sway bar system much more effective like adding a larger, higher performance sway bar! Economy, increased efficiency, and easy installation are just some of the reasons these products are so popular. Made of Hyper-Flex polyurethane that lasts much longer than O.E.M. rubber bushings.

Product Features:
  • Allows Sway Bar System to Work At 100% Efficiency
  • Zerk Type Fittings
  • Allows for Periodic Greasing
  • Lasts Much Longer Than OEM Rubber Bushings
  • Handling Characteristics Improve Dramatically
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MagnaFlow – Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound (Part No.16835)

Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound

from

$987.99
The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:
  • All Mandrel Bent Tubing
  • 409 Stainless Steel Construction
  • Increased Horsepower and Torque
  • Made in USA
  • Moderate Exterior Sound with Mild Interior Sound
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MagnaFlow – Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound (Part No.16658)

Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound

from

$743.99
The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:
  • All Mandrel Bent Tubing
  • 409 Stainless Steel Construction
  • Increased Horsepower and Torque
  • Made in USA
  • Moderate Exterior Sound with Mild Interior Sound
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MagnaFlow – Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound (Part No.16661)

Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound

from

$774.99
The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:
  • All Mandrel Bent Tubing
  • 409 Stainless Steel Construction
  • Increased Horsepower and Torque
  • Made in USA
  • Moderate Exterior Sound with Mild Interior Sound
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K&N – Oil Filter (Part No.HP-1015)

Oil Filter

from

$20.99
Automotive oil filter

Product Features:
  • OE replacement oil filters for most cars, trucks, SUVs, motorcycles and ATVs
  • 1″ (automotive) or 17 mm (motorcycle) exposed nut designed for easy removal
  • Heavy-duty construction, high flow rates and outstanding oil filtration
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2003 Subaru Impreza Performance and Racing Products

You count on your 2003 Subaru Impreza to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Performance and Racing Products. With 17 Performance and Racing Products ranging in price from $20.99 to $1,055.99, you’re sure to find everything you need for your 2003 Subaru Impreza.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 7 different brands like Flowmaster Inc., K&N, and Energy Suspension. 2003 Subaru Impreza Performance and Racing Products start as low as $20.99!

One of the best ways to find top quality OEM or aftermarket Performance and Racing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 59 extensive product reviews on 2003 Subaru Impreza Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound with 4.7 stars and Air Filter with 1.0 stars.

Did we mention you can order your Performance and Racing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Performance and Racing Products inventory for your 2003 Subaru Impreza below to get started!

Top-Rated Performance and Racing Products Brands For Your 2003 Subaru Impreza

Trusted Performance and Racing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Subaru Impreza running right for years to come. In our inventory you’ll find brands like Flowmaster Inc., K&N, Energy Suspension, and even more.

Popular K&N Performance and Racing Products

You’ll find popular K&N brand products across Performance Air Filters. All are waiting to get your 2003 Subaru Impreza back on the road. Some of the top-rated K&N products in these categories are:

FAQs for 2003 Subaru Impreza Performance and Racing Products

What are the most purchased Performance and Racing Products for the 2003 Subaru Impreza?

Out of 17 Performance and Racing Products for the 2003 Subaru Impreza, the most popular in our inventory are:
Control Arm Bushing Set
from $96.99
This product is not rated
Control Arm Bushing Set
Performance Lower Control Arm Bushings
Trailing Arm Bushing Set
from $76.99
This product is not rated
Trailing Arm Bushing Set
Performance Upper Performance Control Arm Bushings

What are the top-rated 2003 Subaru Impreza Performance and Racing Products?

Top-rated Performance and Racing Products for your 2003 Subaru Impreza based on customer reviews/ratings are:
Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
from $113.99
(3)
Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
“Very good deep sound! I only have a 4 cylinder 2000 Mitsubishi eclipse but you couldn’t even tell. It sounds great!”
Air Filter
from $65.99
(1)
Air Filter
“this site says this air filter will fit a 93 subaru impreza and the only way it would fit is if it had a after market air intake dont believe everythi”