Fitment Information: This header fits 2002 - 2014 Subaru WRX, 2004 - 2021 Subaru STI, 2005 - 2009 Subaru Legacy GT, and 2004 - 2008 Subaru Forester XT. Features: The aFe power twisted steel long tube unequal length headers are crafted to enhance the famous Boxer Rumble. Made of brushed SUS304 stainless steel, they offer top - notch durability. With laser - cut flanges and all necessary gaskets included, the aFe WRX and STI exhaust manifold can be easily bolted to a stock or stock - location uppipe. It's designed to optimize exhaust flow and increase spool, improving horsepower, torque, throttle response, and reducing turbo lag. It creates an aggressive exhaust rumble. Constructed from 1 - 5/8' - 2 - 1/2' Mandrel - Bent Brushed Tubing, it uses laser - cut flanges for a leak - free seal and is 100% TIG - welded for strength. The unequal design works with the factory exhaust system without any modifications. Gaskets and installation hardware are included.





Using this aFe power header is straightforward. First, make sure your vehicle is one of the compatible Subaru models (WRX 2002 - 2014, STI 2004 - 2021, Legacy GT 2005 - 2009, or Forester XT 2004 - 2008). Then, use the included gaskets and installation hardware to bolt the exhaust manifold to your stock or stock - location uppipe. No need to modify your factory exhaust system. As for maintenance, since it's made of 304 stainless steel, it's quite durable. But it's a good idea to regularly check for any signs of wear, like loose bolts or damaged gaskets. If you notice any issues, replace the parts promptly. Keep it clean by washing it with a mild soap and water solution. Avoid using abrasive cleaners that could scratch the brushed surface.