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)

Regular price $1,294.47 USD Sale price $1,294.47 USD Regular price $1,513.99 USD
Sale 14.5% $219.52 USD (14.5%)
In Stock: 1
SKU: perPSP-EXT-056
Product Description

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.


  • 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


  • 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)


  • 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.


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

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck items, will require up to 7 business days to ship due to size. i.e. hoods, trunks, body kits, etc.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers or apartment numbers will require signature if valued over $200.

All international orders outside of the USA are subject to duties and taxes per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

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