Borla Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Legacy GT 2005-2012

Part #: 17217. The Borla Unequal Length Header for the WRX and STI is crafted from high - quality T - 304 stainless steel. This material not only ensures top - notch performance but also long - lasting durability. It significantly boosts low - end torque and enhances throttle response across the entire RPM range. With Borla's million - mile warranty, it's the one - and - only header you'll need for your WRX or STI. This header is engineered to directly attach to a stock or aftermarket uppipe. For a leak - free installation, we suggest replacing the gaskets. Notes: Some 2002 - 2005 WRX models require a 2.5L STI oil pan, and 2006 - 2007 WRX models need an STI oil cooler and an STI oil pan.

Using this Borla Unequal Length Header is straightforward. First, make sure you have the right tools handy. When installing, it can be directly bolted to your stock or aftermarket uppipe. But don't forget to change the gaskets to prevent any leaks. If you have a 2002 - 2005 WRX, check if yours is one of the models that need a 2.5L STI oil pan. For 2006 - 2007 WRX owners, install the STI oil cooler and oil pan as required. As for maintenance, since it's made of T - 304 stainless steel, it's quite durable. Regularly check the bolts for tightness and look for any signs of corrosion or damage. With Borla's million - mile warranty, you can use it with confidence.