2004 SUBARU IMPREZA Parts & Accessories

ACT Heavy-Duty Clutch Kits

ACT heavy-duty clutch kits offer a clamp load increase of 20 to 50 percent over OEM, significantly increasing torque capacity. The pedal feel with these clutches varies from stock to a moderate increase. Available for street and race applications, many are SFI-certified to ensure safety.

4.54 out of 5 stars ( 87 )

$765.00

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$861.00

Whiteline Sway Bars

Whiteline sway bars are designed and engineered to dramatically improve grip, handling, and outright performance. Available for front or rear sway bar applications, depending on your suspension part needs, these anti-sway bars will bring out the absolute best-handling performance possible in your vehicle. So, when you are servicing your sway bar assembly, choose these high-quality sway bar components from Whiteline—the suspension experts! Order the sway bar model designed for your specific part application needs.

4.5 out of 5 stars ( 26 )

$827.88

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$996.88

ACT Xtreme Clutch Kits

ACT Xtreme clutch kits pave the road to high performance by meshing solid products, outstanding quality, and exceptional value. These Xtreme clutch kits with racing or street discs are based on solid engineering principles. They afford a clamp load increase of 50 to 100 percent with moderate-to-stiff pedal feel, and many of these new (not rebuilt) units are SFI-certified to ensure safety. You've spent long hours building your engine; now put it in motion with the smooth, precise feel and longer life of an ACT Xtreme clutch kit.

4.5 out of 5 stars ( 16 )

$759.00

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$903.00

Centerforce Dual Friction Clutch Kits

Centerforce dual friction clutches generate up to a 90 percent increase in holding capacity over stock systems. These clutch-and-disc sets are designed for engines producing high horsepower and big torque outputs. Perfect for 4WD vehicles, all Centerforce clutch systems provide smooth engagement and light pedal pressure without compromising high performance.

4.67 out of 5 stars ( 314 )

$797.95

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$881.95

Nitrous Express Piranha Nozzle Nitrous Systems

Space can be at a premium in some engine compartments. Nitrous Express Piranha nozzle nitrous systems are designed to deal with that problem and still give you big-time power increases. They're built around NX's compact, yet highly effective Piranha nozzles and can deliver from 100 to 250 extra horsepower for 4-cylinder engines (including the air-cooled Volkswagen). For sixes, the power jumps range from 150 to 375 horses, and V8s can get boosts of 200 to 550, or even 600 hp. The kits come with nozzles, delivery lines and fittings, jets, solenoids, wiring, switches, and mounting hardware.

3.0 out of 5 stars ( 1 )

$772.50

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$894.40

PowerStop Z26 Street Warrior Brake Upgrade Kits with Calipers

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z26 Street Warrior brake upgrade kits with calipers are recommended for high performance, high-horsepower muscle, and modified cars. Kits come with everything you need for easy installation, including pads, rotors, calipers, and stainless steel hardware. Drilled, slotted, and zinc plated rotors are combined with Z26 Extreme street performance carbon fiber ceramic pads to provide shorter stops under the most demanding conditions, while the powdercoated calipers not only protect against corrosion, but also stand out behind your wheels. PowerStop's Z26 Street Warrior caliper brake kits are affordable bolt-on upgrades that deliver the braking power you need to rein in all those ponies, along with a low-dust and noise-free formula, meaning less time spent cleaning those wheels and more time enjoying what matters most--the drive.

4.66 out of 5 stars ( 121 )

$753.39

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$763.88

MagnaFlow Direct-Fit Catalytic Converters

MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.

4.08 out of 5 stars ( 426 )

$754.00

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$992.00

Summit Bucks

DeatschWerks Fuel Injectors

DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.

4.69 out of 5 stars ( 71 )

$859.00

Rhodes Race Cars Competition Roll Cages

Rhodes Race Cars competition roll cages meet or exceed NHRA and IHRA requirements (when properly installed). Available in 4, 6, 8, and 10-point models, all RRC bars are precision bent for each particular body style and feature notched tube ends (where applicable) for ease of installation. Increase chassis stiffness, and race safe with Rhodes Race Cars competition roll cages. RRC roll bars and cages are available in the following materials: * 1-3/4 in. x .134 in. wall mild steel tubing * 1-3/4 in. x .120 in. wall DOM tubing * 1-3/4 in. x .083 in. wall 4130 chromoly tubing The 4-point kits include main hoop, rear braces, seat crossmember, and four steel mounting plates. The 6-point kits include main hoop, rear braces, side bars, seat crossmember, and six steel mounting plates. The 8-point kits include main hoop, rear braces, side bars, frame supports, seat crossmember and 6 steel mounting plates. The 10-point kits include everything in the 8-point kits, plus a roof hoop, windshield runners, and dash crossmember. Note: Because of differing driver positions and main hoop locations, roof hoop and windshield down bars are not notched!

3.69 out of 5 stars ( 149 )

$849.95

South Bend Clutch Stage 2 Drag Race Clutch Kits

South Bend Clutch Stage 2 Drag Race clutch kits are designed with racers in mind. They include a single mass SFI-approved flywheel with each kit—typically required for drag racing when the original design is dual mass. The heavy-duty pressure plate is modified for a puck-style disc with no cushion between the linings to keep the clutch pedal travel short and quick. These South Bend Clutch Stage 2 Drag Race clutch kits are recommended for drag racing, drifting, and limited street use. Order the kit that's recommended for your specific vehicle and engine size. Features, items, and specs include: * Graphite-impregnated ceramic friction material for exceptional durability, heat transfer, torque capacity, and reduced chatter * Puck-style disc reduces rotational mass and total drive surface area, while increasing psi on the surface of the friction material * Disc design minimizes inertia, accelerating the transfer of torque from the engine to the wheels * Meticulous processing and advanced packaging materials

Not Yet Reviewed

$862.86

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$896.12

South Bend Clutch Stage 2 Endurance Clutch Kits

South Bend Clutch Stage 2 Endurance clutch kits are recommended for daily and street use with an emphasis on rally and endurance racing. An SFI-approved single-mass flywheel is recommended for racing climate applications in order to achieve optimal performance (flywheel not included). Order the clutch kit recommended for your vehicle application. Features include: * Designed for the racing environment * Pressure plate is precision-balanced for vibration-free operation at high-rpm * Pressure plate fulcrum is altered for a positive disengagement and a quick shift * Disc is engineered with a dual-damped design to provide accurate control when accelerating through corners * Hybrid friction material with a full face Feramic (sintered iron) lining on the flywheel side and a high metal content organic lining on the pressure plate side * Engagement is positive, yet buffered due to the high graphite content unique to Feramic facings

3.0 out of 5 stars ( 3 )

$786.26

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$954.54

South Bend Clutch Stage 2 Daily Driver Clutch Kits

South Bend Clutch Stage 2 Daily Driver clutch kits are engineered for vehicles with high performance modifications. The heavy-duty pressure plate has an increased clamp load with little or no increase in pedal pressure to offer stock feel, while increasing strength and durability. The organic disc material has a high metal content that increases the co-efficient of friction by two times over a stock lining. This greatly increases rotational strength up to a 12,000 rpm burst point for high performance. South Bend Clutch Stage 2 Daily Driver clutch kits are recommended for daily performance, street, and moderate race vehicles. Select the kit designed for your application needs.

3.17 out of 5 stars ( 6 )

$963.92

XClutch Stage 2R Clutch Kits

XClutch Stage 2R clutch kits are performance upgrades that have been engineered to provide the ultimate in clutch performance. Utilizing the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between drivability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analyzed to ensure positive pedal feel and increased clamping force. XClutch utilizes the latest ceramic technology in their Stage 2R performance kits and are mated with a high performance pressure plate. These kits are recommended for vehicles requiring a higher level of torque holding and heat capacity. Order the clutch kit designed for your application needs.

5.0 out of 5 stars ( 1 )

$811.52

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$927.34

XClutch Stage 1 Clutch Kits

XClutch Stage 1 clutch kits offer a variety of performance upgrades for both street and track applications. They are designed in-house and normally utilize a single plate organic, ceramic, or carbon friction disc along with an upgraded factory-style pressure plate. XClutch kits utilize a similar mechanism to the factory clutch, making them ideal enhancements for most vehicles with low to mid-level performance modifications. Stage 1 clutch kits are available in three distinct performance clutch packages—sprung, rigid solid, and steel-backed organic. Features and benefits of each: * 1A sprung organic—this range has been specifically designed for street vehicles that have minor engine and general performance modifications. These kits offer a sprung organic friction disc that allows for great drivability, while offering improved clamping force through the use of a performance pressure plate. * 1G rigid solid organic—with a rigid center version of the organic disc, this range is ideal for street vehicles and light track use. These kits are often available with a lightweight alloy pressure plate and performance flywheel. * 1T steel-backed organic--this range offers a higher burst strength by bonding the organic friction material directly to a steel backing plate. These kits are ideal for high performance vehicles used on the street with occasional track use.

3.6 out of 5 stars ( 5 )

$803.81

Rhodes Race Cars SCCA, NASA, and Drift Roll Cages

Rhodes Race Cars SCCA, NASA, and Drift roll cages are made specifically for hobbyists and for serious racers looking to compete in SCCA, NASA, or Formula D events. All road race cages feature a main hoop diagonal and dual door bars (can be made into dual X-bars). They are weld-in cages and feature notched tube ends (where applicable) for ease of installation. Roll cages are offered in these materials: * 1 5/8 in. O.D. 0.134 in. wall ERW mild steel tubing * 1 5/8 in. O.D. 0.120 in. wall DOM tubing * 1 5/8 in. O.D. 0.083 in. wall 4130 chromoly tubing DOM tubing is very strongly recommended; ERW cages will most likely NOT pass tech inspection for most classes. Chromoly is not recommended by most sanctioning bodies. Due to different requirements for specific classes and weights, you should check with your track or sanctioning body for specific guidelines prior to purchase. It is the installer's responsibility to assure that a cage meets race organization rules as to tubing material and sizes, fit, placement of components, and welding. Note: Because of differing driver sizes and main hoop locations, roof hoop and windshield down bars are not notched. Some minor trimming may be required during installation.

5.0 out of 5 stars ( 2 )

$824.95

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$974.95

HushMat Complete Vehicle Insulation Kits

HushMats complete vehicle insulation kits serve two important functions: reducing thermal transfer into your interior, and reducing the noise level by up to 15 decibels. Your engine, headers, manifold and exhaust generate tremendous heat that transfers to the metal firewall and floor—forcing your A/C system to work harder to maintain a comfortable environment. HushMat auto heat shield is proven to lower this temperature by over 40 percent. At the same time, when you drive on the highway at 65 mph, most vehicles approach 80 to 90 decibels of noise. That's like a vacuum cleaner or garbage disposal running on your passenger seat. These insulation kits use a specially designed sound deadening material to deliver a more peaceful ride. Each kit is packaged specifically for your vehicle to provide 100 percent insulation coverage—no holes in the material and no puzzle pieces to assemble. Treat your firewall, doors, floor, tunnel, rear wheel wells, trunk floor, and roof with these HushMat barriers. Order the complete insulation kit designed for your specific vehicle. Additional details: * Reduces road noise and vibration, low-frequency noise from 0 to 1,000 Hz * Stay warmer in the winter and cooler in the summer; withstands ambient temps from -30 up to +550 degrees F * Lightweight and super flexible mats; less than 1/8 in. thick and 0.47 lbs. per sq. ft. * Adhesion is guaranteed; no alcohol or acetone wash needed; no tools required * Trims easily with standard razor knife or household scissors * Self-adhesive peel-and-stick; no glue required * Outperforms closest competitive brand by over 40 percent * OEM approved; meets or exceeds auto damping specs GMO 149M – General Motors; WSB-M5G58-A1 – Ford; and MS-CD 629 Type C – Chrysler

5.0 out of 5 stars ( 1 )

$803.86

South Bend Clutch Stage 1 Heavy-Duty Clutch Kits

Designed for spirited and daily driving, the South Bend Clutch Stage 1 clutch kits make for a great OEM replacement when your factory clutch gives out. The pressure plate included in this clutch kit has an increased clamp load that promotes longer life, and the disc is dual dampened for smooth engagement and increased transmission life. The disc has also been designed with premium friction materials, which will ensure for rapid heat dissipation and will help to increase the life of the clutch. Select the Stage 1 HD clutch kit designed for OE replacement or your performance application.

4.82 out of 5 stars ( 17 )

$836.26

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$902.32

The Driveshaft Shop Level 4 Axles

The Driveshaft Shop's Level 4 axles are similar to their Level 5 models. The outer CV and the internals are made from high-grade chromoly. Original spline sizes are used to fit the stock hubs. To make sure the center bar is up to the task of hard launches, autocross, and rally demands, The Driveshaft Shop uses the new 300M material for extra strength. This material has proven to be, without a doubt, the strongest and most resilient bar material available to the company. Also, the inner CV was recently changed from a tripod design to a full ball and cage design—with a larger radius to the spline plug for added strength. So there you have it: a direct-fit axle that will withstand the most violent launches, time attacks, or rally applications. Order the Level 4 axles recommended for your vehicle.

Not Yet Reviewed

$849.99

Summit Bucks

DeatschWerks Top-Feed Conversion Fuel Rails

DeatschWerks top-feed conversion fuel rails are designed to convert side-feed applications to top-feed. Many performance vehicles manufactured between 1991 and 2006 came from the factory with side-feed injectors. The benefit of the modern top-feed injectors is that they are easier to tune, less expensive, and flow more fuel than side-feed alternatives. These vehicle-specific fuel rails are sold in pairs. DW also offers upgrade conversion kits that come with injectors ranging from 750cc to 2200cc and are engineered as a system where injector, rails, and mounting hardware that work together to integrate flawlessly into the OE manifold and mounting points. Select the fuel rails or the upgrade conversion kit recommended for your application.

Not Yet Reviewed

$949.00

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$989.00

Rhodes Race Cars Lemons and Chumps Roll Cages

Rhodes Race Cars Lemons and Chumps roll cages are specifically designed for those of you looking to compete in 24 Hour of Lemons and ChumpCar Series races. RRC has taken out all of the guess work and come up with these easy-to-install kits. All the tubing is pre-bent and notched for ease of installation. Rhodes Race Cars Lemons and Chumps roll cages are available in ERW mild steel, DOM, and chromoly. ERW mild steel is accepted by both sanctioning bodies, but DOM is very strongly recommended. Chromoly is generally NOT recommended for this type of racing. Check your sanctioning body's rules before you order! Note: Some minor trimming may be required during installation. All RRC cages are weld-in cages.

1.33 out of 5 stars ( 6 )

$824.95

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$974.95

South Bend Clutch Stage 3 Daily Driver Clutch Kits

South Bend Clutch Stage 3 Daily Driver clutch kits are recommended for single mass flywheel (SMF), when original design is dual mass flywheel (DMF). These clutch packages are designed for high-horsepower vehicles desiring a start performance similar to OE. The pressure plate is race engineered (SS) and SFI-approved with significant load increase over stage 1 and 2 pressure plates (+600-800 lbs.). Expect a pedal effort increase of 20 to 25 percent. Discs are assembled with heat-treated wear-resistant hubs, as well as drive plates and springs for high-load transfer and dependable operation. The sprung centers on the disc, in conjunction with the marcel fin between the linings, create a dual dampening effect that simulates OE start performance. A performance organic friction material with a high metal content increases torque and rpm capability—and maintains low operating temperatures, which reduce wear and glazing. South Bend Clutch Stage 3 Daily Driver clutch kits are the perfect match for your high performance street machine and occasional track use. Order the kit recommended for your application.

Not Yet Reviewed

$913.92

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$962.43

COBB Tuning Exhaust Systems

COBB Tuning exhaust systems—whether turbo-back or cat-back—feature bolt-on installation of components with outstanding build-quality, along with the potential for excellent power gains and impressive exhaust notes. Each system offers additional features designed to gain the most performance for your specific application. COBB turbo-back systems include cat-back exhaust and downpipe. Order the kit recommended for your vehicle. Typically, COBB Tuning exhaust systems feature: * 304 stainless steel construction for corrosion resistance (some models are titanium) * Mandrel-bent tubing * TIG welds * Beautifully polished tips * High-flow catalytic converter * Muffler * Resonator * Flange gaskets and hardware * Tips and mufflers with COBB logo

5.0 out of 5 stars ( 1 )

$905.00

Injector Dynamics ID1300x Fuel Injectors

Injector Dynamics ID1300x fuel injectors are high-flow models with characteristics specific to the needs of motorsport tuners. You get superior flow without sacrificing idle and cruising performance in low fuel demand situations. This perfect balance between reliability and performance makes the 1300x Series one of the most popular options in today's motorsports. These injectors not only work with gasoline, but any ethanol fuels your engine is tuned for. The stainless internals prevent corrosion, add durability, and provide dependable flow in high performance engines. Order the ID1300x fuel injectors recommended for your vehicle.

4.0 out of 5 stars ( 1 )

$910.84

LuK Clutch Kits

Clutches are subjected to continuous wear and tear. LuK clutch kits are made with premium quality components, engineered and manufactured to be problem-free. These kits are functionally tested to meet OEM performance specifications and provide an innovative and quality engineered clutch kit. As an original equipment supplier, LuK develops the performance specifications for individual vehicle applications.

4.42 out of 5 stars ( 384 )

$779.99

2004 SUBARU IMPREZA Parts and Accessories