Perrin Turbo Inlet Hose | 2008-2014 Subaru WRX (PSP-INT-421)

Perrin Performance
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$283.05 $333.00Instant Savings of 15% ($49.95)

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2008-2014 Subaru WRX Reinforced Silicone Inlet Hose by Perrin Performance

The PERRIN inlet hose is perfectly smooth on the inside and has a significantly larger internal diameter than the OEM part. The increased air flow by removing the pleats found in the OEM hose makes more horsepower, decreases turbo spool time, and improves acceleration. The PERRIN inlet hose is reinforced with a stainless steel support wire that is embedded within the silicone layers. The support adds rigidity to the hose and prevents collapse when used with restrictive filter elements and large turbo applications running extreme amounts of boost.

The PERRIN inlet hose has a machined aluminum insert which is bonded into the layers of silicone, giving you a solid blow off valve hose connection and makes installation go even easier. All spigots on the PERRIN inlet hose are 1/2"ID for maximum flow from crank case vents and other vacuum connections. All connectors used on our hoses are glass reinforced nylon (rated to 400 degrees F) which will withstand engine bay temps found from normal driving to extreme racing conditions.


  • Silicone Construction
  • Reinforced with Stainless Steel Wire
  • Larger Diameter than OEM
  • Perfectly Smooth Inside
  • Large High Flow Spigots
  • Available in Black, Red or Blue


  • More Horsepower
  • Faster Turbo Spool Time
  • Improved Acceleration
  • Increased Throttle Response

Please Note:

  • This product is legal in California only for racing vehicles which may never be used upon a highway. Check your local and federal laws prior to installation.
  • WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to


  • 2008 - 2014 Subaru Impreza WRX
  • 2005 - 2008 Subaru Legacy GT (Tight @ BOV Hose. Modifications may be needed)
  • 2009 - 2013 Subaru Forester XT

What's In The Box?

  • 1 - PERRIN Inlet Hose
  • 1 - Polished Coupler
  • All Necessary Hardware
  • Installation Instructions
  • Warranty Information
  • Stickers

Installation Instructions


  • Perrin Performance 5 Year Limited Warranty

Customer Reviews

Based on 2 reviews
Perrin Turbo Inlet

spools a little faster, nothing drastic though. definitely a good supporting mod for any build though. looks clean in the engine bay.

Jonathan lee
Perrin turbo intake

Fast shipping great communication also product fits great on my 08 legacy gt limited with my Tomei ARMS MX7960F turbo I had taken the intake manifold loose to have more angle to get the Perrin intake onto the turbo inlet only thing that makes it sort of hard is it does not have the indentation that the factory one has to clear the intake manifold runners but it is playable enough it just hugs the runner tight fit just like Perrin says and Perrin also had great tech support when I called