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Exhaust› Headers, Manifolds and Components

Agency Power

304 Stainless Steel Equal Length Exhaust Headers

$99,999.99 $699.99 Save $99,300.00

SKU: AP-GDA-176

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INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

By implementing equal length tubing and a merged collector, it aims to enhance turbo spool by 300 RPM.

Constructed from polished 304 stainless steel with 1/2 inch thick CNC machined flanges, this header includes all necessary hardware for direct bolt-on installation. It features a free-flowing design that improves exhaust flow across the entire RPM range. A notable effect of the equal length design is a change in the engine sound from the distinct Subaru note to a smoother exhaust note.
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These headers feature an equal length tubing design and a merged collector, which Agency Power states can improve turbo spool by up to 300rpm. Testing on an upgraded turbo vehicle showed gains of up to 30 ft-lb of torque and 20 wheel horsepower on a Mustang Dyno. The free-flowing design also contributes to gains across the entire RPM range. Constructed from polished 304 stainless steel, these headers boast CNC-machined 0.5-inch thick flanges for durability and a precise fit. They are designed to be a direct bolt-on installation for many Subaru turbo models, including the Subaru WRX (2008-2014), Subaru STI (2004-2016), Subaru Legacy GT (2005-2009), and Subaru Forester XT (2009-2013). However, specific modifications may be required for certain model years. For 2002-2005 WRX models, an oil pan with a header cutout and an oil pickup tube are necessary. 2006-2007 WRX models will require the 02-04 oil cooler assembly and oil feed pipe. Due to the equal length design, these headers will alter the characteristic Subaru engine sound, resulting in a smoother exhaust note. The improved exhaust flow and quicker turbo spool can also lead to better acceleration times at the drag strip.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandAgency Power
Part NumberAP-GDA-176
CategoryExhaust
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