Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014

  • Subaru Impreza / WRX / STi Perrin Performance Header
  • SELECT CATEGORY
  • SELECT BRAND
  • Subaru Impreza / WRX / STi Perrin Performance Header
  • Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 1
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 2
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 3
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 4
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 5
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 6
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 7
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 8
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 9
    Perrin Performance PSP-EXT-055 | Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014 Alternate Image 10

    Perrin Performance Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014


    • IN STOCK: Ships within 24hrs
    • Catalog #: 00928351
    • MPN: PSP-EXT-055
    • Your Price: $1,068.75
      Regularly: $1,125.00 (Save $56.25)

    • QUANTITY:
    • + Add to Wish List

Product Description

Perrin Performance PSP-EXT-055 - Perrin Performance Subaru WRX Equal Length Header 1.5" Primaries; 2002-2014.

Create a smooth sounding exhaust note while increasing horsepower and torque with the PERRIN E4-Series Equal Length Header. Completely Redesigned - The new PERRIN E4-Series Equal Length Header comes with collectors that have been designed for better exhaust flow while allowing the headers to be constructed much more accurately. The improved exhaust flow and more precise construction increases power and reliability. The new E4-Series also has a low-profile design, allowing for excellent of ground clearance. The equal length design of the PERRIN E4-Series Header produces smooth, balanced exhaust flow from the heads to the turbocharger giving you the best of two worlds: quicker turbo response as well as more horsepower and torque throughout the entire RPM band. While designed to fit to the factory up-pipe, our header will also mate with an aftermarket up-pipe that fits factory header and turbo, as well as any rotated turbo kits compatible with the factory header.

You won't see grossly over-sized tubing to make our header look impressive, this just slows exhaust gas flow and reduces response. PERRIN headers uses 1.5 and 1.625 (big tube) primary tubing that is expanded at the flange to fit the Subaru exhaust port size. These tubing sizes are perfectly designed for cars up to about 400 wheel horsepower and above 400 wheel horsepower, respectively. You can see from our dyno graphs that there is a significant gain in horsepower and torque across the entire RPM band compared to an OEM Subaru header.

PERRIN Flanges are CNC machined from 304 stainless steel and counterbored on the back side to make smoother transitions. Flange ports are sized properly to ensure exhaust coming out of the head has a smooth, unobstructed path to the tubes. The ports are not over-ported which would cause gaskets to burn out quickly. The tubes are expanded inside the flanges for a perfect fit and smooth flow of exhaust gases to the tubes.

Due to its equal length design, the PERRIN Header will alter the tone of your exhaust. The exhaust pulses from the engine are equalized and spread out producing a smoother, more refined sound. A byproduct of the equalization is a significant reduction in the volume of your exhaust sound. Some describe the sound as being similar to an inline four cylinder engine exhaust.

Most headers collect on the passenger side of the engine, and due to space constraints, are not equal length and compromise exhaust flow. Because we use the added room provided by the oil pan (only on 2.5L turbo pans), we can create a smooth transition of the header primaries to the collectors, and collectors to up-pipe, providing more power and torque then the competition.

PERRIN E4-Series Equal Length Headers feature a brushed stainless steel finish.

2.0L WRX engines will need the 2.5L STI oil pan install kit.

Fitment Notes

  • 2002-2005 WRX - Yes, requires oil pan with header cutout and oil pickup tube, and custom modification to the radiator line to the transmission.
  • 2002-2005 WRX - Automatic Transmission Yes, requires modifications to radiator.
  • 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.
  • 2009-2013 Forester XT - Yes, no modification required
  • 2004-2007 STI - Yes, no modification required
  • 2005-2009 Legacy GT - Yes, no modification
  • 2008-2014 WRX - Yes, no modification
  • 2015-2018 WRX - No
  • 2008-2014 STI - Yes, no modification
  • 2015-2019 STI - Yes, no modification
  • CSF Radiator with Built-in Oil Cooler - No
  • KILLERB Cast Oil Pan - No

*** NOTE: Not legal for use on pollution-controlled motor vehicles. For off-road use only.The use of long tube headers with aftermarket cats, powerflo-x,hpipe,xpipe crossover pipes with or without aftermarket cats or aftermarket cats are illegal for installation and use on emission-legal vehicles when operated on public streets or highways. They can only be legally used while participating in sanctioned motorsports racing events.

Purchasing one of these items, you agree that the long tube headers with aftrmarket cats, powerflo-x,hpipe,xpipe crossover pipes with or without aftermarket cats or aftermarket cats purchased from Late Model Performance are soley being used for sanctioned motorsports racing events, and when installing or re-selling headers with aftermarket cats, powerflo-x crossover pipes with aftermarket cats or aftermarket cats, the end consumer is being made aware of and agrees to these terms of use.

Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc.

* FREE SHIPPING: Please note FREE Shipping refers to shipping within the contiguous contential US only. All other locations extra.

Search Terms: PSPEXT055 PSP-EXT-055 Perrin Performance Subaru WRX Equal Length Header 1.5" Primaries Impreza / WRX / STi Exhaust Headers Perrin Performance Subaru WRX Equal Length Header 15" Primaries 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

Perrin Performance PSP-EXT-055 Header Review(s)

About Perrin Performance

History and information about Perrin Performance and their products.

PERRIN Performance manufactures and supplies the finest Subaru products on the market today. PERRIN's full line of products hits every aspect of performance modification for your Subaru. From suspension to engine performance, PERRIN makes the products which will boost your performance to the next level. Our customer service, sales, and technical staff is always available to help you with questions or concerns. We pride ourselves on the unique levels of customer service we provide that are simply not found elsewhere in the aftermarket industry today.

Other Popular Parts

Below are other popular parts other customers have purchased for their Subaru Impreza / WRX / STi.

^