Borla Unequal Length Header - 2015-2021 Subaru STI / 2002-2014 Impreza

The Unequal-length header will increase the performance and the rumble in the Subaru WRX/STI.

Borla Unequal Length Header

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Header Specs:

• Unequal-length header layout
• Collector outer diameter 2.25"
• Primary tube outer diameter 1.625"
• Quality stainless steel materials
• Improves horsepower
• Improves torque
• Provides aggressive sound and generates that flagship "rumble"
• Fits manual and automatic models

Borla Unequal Length Header

If you really want to increase that flagship Subaru "rumble", then a quality unequal-length header will be the main ingredient. Borla which is a seasoned establishment and a leader in the exhaust industry has developed a quality unequal-length header to improve the power and performance of your vehicle.

The factory exhaust manifold has been designed to be very robust, but it leaves so much room for improvement. It is incredibly heavy and is a multi-piece unit. The Borla example features a very strong yet lightweight stainless steel construction with smooth bends that generate an unobstructed flow path for the exhaust gases to escape. This will increase the horsepower and the torque, and it will also improve the overall turbo response because there are fewer restrictions. A great upgrade for your race car, rally car, or daily-driven street car.