HKS Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Forester XT 2004-2008 / Legacy GT 2005-2009

The HKS Unequal Length Header for Subaru WRX 2002-2014 / STI 2004-2021 / Forester XT 2004-2008 / Legacy GT 2005-2009: constructed from polished SUS304 stainless steel for maximum durability, complete with thick flanges and gaskets. Plus, a heat insulator is thrown in for extra security. This is one pretty piece that will bolt to stock or stock-location uppipes – easy-peasy!

• SUS304 stainless steel construction
• Premium welds
• Designed to optimize exhaust flow while increasing spool
• Unequal design
• Improves horsepower and torque
• Improves throttle response and reduces turbo lag
• Creates an aggressive exhaust rumble
• Works with the stock up-pipe, or any aftermarket up-pipe that utilizes the 2-bolt flange
• Includes (2) manifold gaskets
• Includes (1) up-pipe gasket
• Includes heat wrap
• Includes zip ties and an O2 sensor plug

Fitment:

• 2002-2014 Subaru WRX
• 2004-2021 Subaru STI
• 2005-2009 Subaru Legacy GT
• 2004-2008 Subaru Forester XT

Notes:

• 2002-2005 WRX requires 2.5l STI oil pan (on some)
• 2006-2007 WRX requires STI oil cooler and sti oil pan