1. Manifolds & Headers Offered
  2. sku: 8394398894510722
  3. ULTIMATE COMPONENTS UT10589YU147

ULTIMATE-COMPONENTS UT10589YU147 Manifold Header Exhaust Wrx/sti 2PC Pipe

fits model: Ej25, Wrx, Sti, Impreza. make: Subaru. year: 2002–2007.

Ut10589yu147 Ultimate-components For 02-07 Subaru Impreza Wrx/sti Ej25 2pc Manifold Header Exhaust Pipe

( Brand: Ultimate-components ), ( Manufacturer Part Number: UT10589YU147 ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Front ), ( Oe Spec Or Performance/custom: Performance/custom ), ( Color: Metallic ), ( Surface Finish: Chrome Polished Stainless Steel ), ( Header Inlet: 1.50 ), ( Outlet Size: In ), ( Type: Manifold Header Exhaust ), ( Mounting Style: 4 Bolt ), ( Mounting Hardware Included: Yes )

Review ULTIMATE COMPONENTS Subaru Wrx/sti 2pc Manifold Header Exhaust Pipe fits IMPREZA EJ25 WRX STI 2002–2007

The Ultimate-Components UT10589YU147 manifold header exhaust pipes are a high-performance upgrade for the Subaru Impreza WRX and STI models with the EJ25 engine (years 2002-2007). These headers are designed to replace the stock manifold and exhaust system, providing significant improvements in power and exhaust flow.

Each header is meticulously crafted from high-grade stainless steel, ensuring durability and resistance to corrosion. They feature a 4-2-1 design, which is known for its ability to optimize exhaust flow and reduce backpressure, leading to improved engine performance. The design also allows for a more direct and efficient exhaust path, reducing the amount of exhaust gases that need to travel through the system.

The UT10589YU147 headers come with 1.5-inch primaries and 2.5-inch collectors, providing ample room for increased exhaust flow. They are also designed with a match-ported feature, ensuring a perfect fit and seal with the factory exhaust system. This makes for a straightforward installation process, as no additional modifications are required to integrate these headers with the factory catalytic converters and mufflers.

These headers are engineered to work seamlessly with the factory engine management system, ensuring proper fuel-air mixture and efficient combustion. They are also designed with a gasketless, welded construction, eliminating the need for gaskets and seals, which can potentially fail over time and lead to exhaust leaks.

In summary, the Ultimate-Components UT10589YU147 manifold header exhaust pipes offer a high-performance upgrade for Subaru Impreza WRX and STI models with the EJ25 engine. They are meticulously crafted from stainless steel, feature a 4-2-1 design, and come with match-ported construction for a straightforward installation process. These headers provide significant improvements in power and exhaust flow, making them an excellent investment for those seeking to enhance the performance of their Subaru.

Buying the Ultimate-Components UT10589YU147 manifold header exhaust pipes for a 2002-2007 Subaru Impreza WRX/STI with an EJ25 engine comes with several pros and cons.

Pros:

1. Improved Performance: These headers are designed to improve the performance of your vehicle by reducing backpressure and allowing for better exhaust flow.

2. Durability: Ultimate-Components uses high-quality materials in the manufacturing of these headers, ensuring they can withstand the rigors of high-performance driving.

3. Increased Horsepower and Torque: The improved exhaust flow can result in an increase in horsepower and torque, making your vehicle faster and more responsive.

4. Better Sound: The headers produce a more aggressive exhaust note, which can be appealing to some enthusiasts.

Cons:

1. Cost: These headers are a significant investment, with the price tag being higher than stock exhaust components.

2. Installation Complexity: The installation process can be complex, requiring the removal of the catalytic converters and other exhaust components.

3. Potential for Increased Emissions: The removal of the catalytic converters can result in increased emissions, which may not be legal in some areas and could impact fuel economy.

4. Potential for Increased Noise: The headers produce a louder exhaust note, which may not be desirable for those who prefer a quieter ride.

Conclusion:

The Ultimate-Components UT10589YU147 manifold header exhaust pipes offer several benefits, including improved performance, durability, increased horsepower and torque, and a better sound. However, they come with some drawbacks, such as cost, installation complexity, potential for increased emissions, and increased noise.

If you are an enthusiast who values performance and sound, and you are willing to make the investment and deal with the installation complexities, then these headers may be a good choice for you. However, if you prioritize quietness, fuel economy, or avoiding increased emissions, then you may want to consider other options.

Recommendation:

If you are looking to improve the performance of your 2002-2007 Subaru Impreza WRX/STI with an EJ25 engine and are willing to make the investment and deal with the installation complexities, then the Ultimate-Components UT10589YU147 manifold header exhaust pipes may be a good choice for you. However, if you prioritize quietness, fuel economy, or avoiding increased emissions, then you may want to consider other options, such as a high-flow catalytic converter or a less intrusive exhaust system. Ultimately, the decision comes down to your personal preferences and priorities.

specifications maniheader:

  • for models: Ej25, Wrx, Sti, Impreza
  • for makes: Subaru
  • for years: 2002-2007
  • brand: Ultimate-components
  • manufacturer part number: UT10589YU147
  • manufacturer warranty: 1 Year
  • placement on vehicle: Front
  • oe spec or performance/custom: Performance/custom
  • color: Metallic
  • surface finish: Chrome Polished Stainless Steel
  • header inlet: 1.50
  • outlet size: In
  • type: Manifold Header Exhaust
  • mounting style: 4 Bolt
  • mounting hardware included: Yes

payments maniheader:

  • other
  • wallet: Apple-pay
  • credit card: Visa

general maniheader:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

returns maniheader:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

offer maniheader:

  • options: Ship-to-home
  • quantity: 5
  • best offers: True
  • started: October 8, 2025
  • availability: In Stock
  • sold: 0

shipping maniheader:

  • service: Standard
  • cost: $0.00
  • transit: 3-8 Days
  • type: Fixed
  • class: Standard

seller maniheader:

  • rating: 98.8%
  • # reviews: 3010
for models: ej25, wrx, sti, impreza, for makes: subaru, for years: 2002-2007, manufacturer warranty: 1 year, placement on vehicle: front, oe spec or performance/custom: performance/custom, surface finish: chrome polished stainless steel, header inlet: 1.50, outlet size: in, type: manifold header exhaust, mounting style: 4 bolt, mounting hardware included: yes,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: metallic, sku: 8394398894510722,

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