1-5/8" - 2-1/2" 304 Stainless Steel Construction:
This system is constructed of 1-5/8" - 2-1/2" mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability.
Unequal Tube Lengths:
This header features Unequal Tube lengths to accentuate the iconic Boxer Rumble.
Laser Cut Flanges:
Factory style laser cut steel flanges are used for a secure, leak-free seal.
Utilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.
Formed collectors decrease turbulence and increase exhaust velocity. The result is increased horsepower, torque and improved throttle response.
100% TIG-welded for race proven strength and durability.
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
aFe POWER headers are engineered and manufactured in our Corona, California facility.
Year Make Model SubModel Engine Fuel 2002-2005 Subaru Impreza WRX H4 2.0L (t) Gas 2006-2014 Subaru Impreza WRX H4 2.5L (t) Gas 2004-2014 Subaru Impreza WRX STI H4 2.5L (t) Gas 2005-2013 Subaru Legacy H4 2.5L (t) Gas 2012-2014 Subaru WRX H4 2.5L (t) Gas 2012-2021 Subaru WRX STI H4 2.5L (t) Gas
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