Perrin 05-09 LGT/OBXT / 04-13 FXT / 02-14 WRX / 04-21 STi Equal Length Header 1.625 inch Primaries (Big Tube) (perPSP-EXT-056)

The PERRIN Equal Length Header boosts horsepower and torque while producing a pleasant exhaust note. Both Standard 1.5" and 1.625" Big-Tube Primaries are offered.

NOTE

• 2002-2005 WRX - Yes, requires oil pan with header cutout and oil pickup tube
• 2002-2005 WRX Automatic Transmission - Yes, requires modifications to radiator and radiator line to the transmission
• 2006-2007 WRX - Yes, requires 2002-04 WRX oil cooler assembly and oil feed pipe
• 2004-2008 Forester XT - Yes, requires oil pan with header cutout, oil pickup tube, 2002-04 WRX oil cooler assembly, and 2002-04 WRX oil feed pipe
• CSF Radiator with Built-in Oil Cooler - No
• KILLERB Cast Oil Pan - No

APPLICATIONS

• Subaru Legacy GT (2005, 2006, 2007, 2008, 2009)
• Subaru Outback XT (2005, 2006, 2007, 2008, 2009)
• Subaru Forester XT (2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013)
• Subaru WRX (2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014)
• Subaru STI (2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
  

FEATURES

• Increase horsepower and torque without ECU recalibration or tune.
• Designed for better exhaust flow while allowing the headers to be constructed with increased accuracy.
• The equal length design of the PERRIN headers provides smooth, balanced exhaust flow from the heads to the turbocharger.
• Perfectly sized for more horsepower.
• Flanges are CNC machined from 304 stainless steel and counterbored on the backside to make smoother transitions.
• Complete necessary OEM replacement parts required for the installation of PERRIN Equal Length Headers.

WHAT'S IN THE BOX?

• (1) PERRIN E4-Series Header
• (1) Anti-seize grease packet
• (1) PERRIN License Plate Frame
• Warranty & Instructions