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Discover Tomei Expreme Twin Scroll Exhaust Manifold Large Piping Jdm - Sti 03-14 Get 85% Off Today [qfEsmMrN]

$74.99 $239.99 -69%

Tomei Extreme Twin Scroll Exhaust ManifoldThe Tomei Extreme Twin Scroll Exhaust Manifold is a top-tier performance upgrade designed for the September 2002 model Impreza STI. This high-performance manifold features twin scroll turbocharger compatibili

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Tomei Extreme Twin Scroll Exhaust Manifold

The Tomei Extreme Twin Scroll Exhaust Manifold is a top-tier performance upgrade designed for the September 2002 model Impreza STI. This high-performance manifold features twin scroll turbocharger compatibility and an all-stainless steel equal length design. Unlike the standard model, Tomei's engineering team challenged the impossibility of surpassing it, resulting in an exhaust manifold that not only meets but exceeds expectations. The product boasts an extensive development process, with over 10 new samples tested thoroughly for optimal performance.
  • Superior Performance: The twin scroll design and stainless steel construction ensure maximum flow and durability.
  • Custom Engineering: Over 10 samples tested to ensure peak performance and reliability.

Technical Specifications

The Tomei Extreme Large Piping exhaust manifold is crafted using a Lost Wax process, which eliminates cracking from welded weak points and ensures smoother exhaust gas flow. This high-quality manifold is constructed from 2.5mm thick SUS304 stainless steel pipes, making it one of the best pieces on the market today. The manifold is tailored for higher horsepower cars, with carefully tested combinations of 42.7mm (pre-gathering section), 45mm (post-gathering section), and a 45mm uppipe to deliver optimal performance.
  • Stainless Steel Construction: SUS304 stainless steel ensures corrosion resistance and long-lasting performance.
  • Customized Design: Tailored for higher horsepower applications for enhanced performance.

Applications and Benefits

This twin scroll manifold is specifically designed for GD/GR/GV Chassis JDM STI models with the factory twin scroll turbocharger. It is not compatible with stock USDM turbos and is ideal for cars equipped with aftermarket turbochargers. The larger piping design provides improved exhaust flow and increased power output, making it a perfect fit for enthusiasts looking to maximize their vehicle's performance.
  • Target Audience: For JDM STI owners seeking to upgrade their vehicle's exhaust system for enhanced performance.
  • Practical Use: Boosts horsepower and torque, improving overall driving experience and acceleration.

What Our Customers Say

January 13, 2026

Absolutely no complaints!

This is a really good and a very, very solid product.

- Kori V..

January 13, 2026

Absolutely no complaints!

This is a very good and a very useful tool.

- Kristin E..

January 13, 2026

Absolutely no complaints!

It’s a product that is just so intuitive.

- Lincoln R..

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