1. Manifolds & Headers Offered
  2. sku: 12852412676691008
  3. DOUG THORLEY THY-563-SS-C

DOUG THORLEY THY-563-SS-C Headers 4.7L

fits model: Gx470, St, 4runner. make: Toyota, Lexus. year: 2005–2009.

Thy-563-ss-c Doug Thorley St Headers / 05-09 Toyota 4runner Lexus Gx470 4.7l

( Brand: Doug Thorley ), ( Type: Exhaust Header ), ( Color: Silver ), ( Items Included: Gasket ), ( Manufacturer Part Number: THY-563-SS-C ), ( Features: Polished ), ( Material: Stainless Steel ), ( Universal Fitment: No ), ( Placement On Vehicle: Front ), ( Fuel Type: Gasoline ), ( Performance Part: Yes )

Review DOUG THORLEY Headers Toyota Lexus 4.7l fits 4RUNNER GX470 ST 2005–2009

Introducing the Doug Thorley Thy-563-SS-C performance headers for the 5.0L 4Runner (2003-2009) and 4.7L GX470 (2002-2009) by Toyota and Lexus. These headers are designed to deliver optimal performance and durability for your vehicle.

The Thy-563-SS-C headers are manufactured using 321 Stainless Steel, ensuring a long-lasting and corrosion-resistant solution for your exhaust system. Each header comes equipped with 5-bolt flanges that provide a secure and robust connection to the engine, allowing for a seamless installation process.

These headers are designed with a 1 5/8-inch primary tube diameter, which maximizes exhaust flow and minimizes backpressure. The collector design is a 3-branch, merge collector, which effectively merges the exhaust gases from all three cylinder banks into a single, high-performance exhaust system.

The Doug Thorley Thy-563-SS-C headers are ideal for those seeking to improve the performance of their 4Runner or GX470. By upgrading the stock exhaust system with these high-performance headers, you can expect increased horsepower and torque, as well as improved throttle response and overall engine performance.

This header set is a direct replacement for the factory exhaust system, making for a straightforward installation process. Each header comes complete with all necessary hardware for a hassle-free installation.

In conclusion, the Doug Thorley Thy-563-SS-C headers are an excellent investment for those seeking to enhance the performance of their 5.0L 4Runner or 4.7L GX470. With their durability, improved exhaust flow, and maximized power output, these headers are a must-have for any serious off-road enthusiast or performance-focused driver.

Pros and Cons of Buying Doug Thorley THY-563-SS-C Headers for 05-09 Toyota 4Runner and Lexus GX470 with 4.7L Engine

Introduction:

Doug Thorley headers are known for their high-performance designs and durability. If you're considering purchasing the THY-563-SS-C headers for your 05-09 Toyota 4Runner or Lexus GX470 with a 4.7L engine, here's a brief analysis of the potential advantages and disadvantages.

Pros:

1. Enhanced Performance: Doug Thorley headers are designed to improve engine performance by reducing exhaust gas backpressure and providing better flow. This results in increased horsepower and torque.

2. Durability: These headers are made from high-quality stainless steel, ensuring they can withstand the test of time and harsh driving conditions.

3. Improved Fuel Economy: By improving engine efficiency, these headers can help you save money on fuel in the long run.

4. Custom Fit: These headers are specifically designed for the 05-09 Toyota 4Runner and Lexus GX470 with a 4.7L engine, ensuring a perfect fit.

Cons:

1. Cost: Doug Thorley headers are a premium aftermarket product, and their price tag reflects their high-performance design and quality materials.

2. Installation Complexity: Installing headers requires some mechanical knowledge and skills. It may be necessary to remove the catalytic converters, which can be a time-consuming and complex process.

3. Potential for Increased Emissions: Since these headers do not include catalytic converters, they may cause an increase in exhaust emissions. This could potentially lead to failed emissions tests, depending on local regulations.

Conclusion:

Doug Thorley THY-563-SS-C headers offer significant performance benefits, including increased horsepower, torque, and efficiency. However, they come with a higher price tag and require some mechanical expertise to install. Additionally, they may not be suitable for those concerned about exhaust emissions. Ultimately, the decision to purchase these headers depends on your priorities and budget.

Recommendation:

If you're looking to enhance the performance of your 05-09 Toyota 4Runner or Lexus GX470 with a 4.7L engine and have the necessary skills and budget, the Doug Thorley THY-563-SS-C headers could be an excellent investment. However, if you're more concerned about emissions or have a limited budget, other performance upgrades may be more suitable for your needs.

specifications maniheader:

  • for models: Gx470, St, 4runner
  • for makes: Toyota, Lexus
  • for years: 2005-2009
  • brand: Doug Thorley
  • type: Exhaust Header
  • color: Silver
  • items included: Gasket
  • manufacturer part number: THY-563-SS-C
  • features: Polished
  • material: Stainless Steel
  • universal fitment: No
  • placement on vehicle: Front
  • fuel type: Gasoline
  • performance part: Yes

returns maniheader:

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

general maniheader:

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

payments maniheader:

  • wallet: Apple-pay
  • other
  • credit card: Diners-club

offer maniheader:

  • best offers: True
  • quantity: 1
  • started: June 17, 2026
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

shipping maniheader:

  • service: USPS Ground Advantage
  • class: Standard
  • carrier: USPS
  • cost: $50.00
  • transit: 6-13 Days
  • type: Fixed

seller maniheader:

  • # reviews: 2
  • rating: 0.0%
for models: gx470, st, 4runner, for makes: toyota, lexus, for years: 2005-2009, type: exhaust header, items included: gasket, features: polished, universal fitment: no, placement on vehicle: front, fuel type: gasoline, performance part: yes,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: silver, material: stainless steel, sku: 12852412676691008,

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