Turbo Inlet Hose for 2002-07 WRX & 2004-15 STI

PSPINT401

3 Hours

Part Numbers
PSP-INT-401BK = Black
PSP-INT-401BL = Blue
PSP-INT-401RD = Red

Limited Supply
Availability: Very limited supply, please call or email for availability.
Pricing: $244.00

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Description

Turbo Inlet Hose

Silicone technology allows us to design a turbo inlet hose that is better in all aspects than the OEM part and increases your engines horsepower and 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, improves acceleration and increases throttle response. 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. Available in glossy black, red or blue.

Smoother Air Flow To Turbo

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.

SS Internal Support Wire

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.

Blow Off Valve Connection

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.

Large High Flow Spigots

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.

Installation

The PERRIN turbo inlet hose is the only hose on the market today that does NOT require the removal of the intake manifold! This cuts the install time from 4-6 hours down to just 1 hour!  We achieve this by changing the placement and type of spigots used.  This design also means NO more rerouting of crank case vents and hoses!  No need to purchase extra gaskets or deal with fuel and coolant spills!

Jeff's Blog

Read a brief history and the development of the Turbo Inlet Hose.  Included are tech notes about our testing we did proving the part makes power as well a s a comparison of our competitors parts against ours.
» Learn More

5 Year Warranty

PERRIN Performance warrants to the original purchaser, all PERRIN products to be free from defects in material and workmanship within a sixty (60) months period from the date of purchase. *Some exclusions apply
» Read Full Warranty

Off Road Use Only

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!
» Learn More

Support


Warranty Details

This product features a 5 year warranty Read Full Warranty


Tech Department

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Video

Inlet Hose Installation



In The Box

In The Box

(1) PERRIN Subaru Inlet Hose
(1) Polished coupler
All necessary hardware
Instructions
Stickers
Warranty
(1) PERRIN License Plate Frame

Dyno Charts

Dyno Charts

Proven Horse Power


Dyno Chart

Turbo Inlet Hose Test on STI

Like all tests we do, we start out with a few baseline runs and then as quick as possible swap out the part we intend to test. In this case when we swapped out the OEM inlet hose for the PERRIN part in 45minutes, which was somewhat controversial as it normally take about 3 times longer than that. The freer flowing nature of the turbo inlet hose gains about 10WHP at higher RPM and spools the turbo faster.


Dyno Chart

Turbo Inlet Hose Test Boost Response

You can see in this graph how much faster the turbo spools up! This is what makes for the higher torque reading on the other dyno graph. Again, PERRIN has brought you something else no one has done before.

Compatibility Notes

Compatibility

2002-2007 WRX Yes
2004-2014 STI Yes
2015 STI Yes
2004-2008 Forester XT Yes

For the 2008-2013 WRX or 2005-2008 Legacy GT» Click here.
For cars with 3" turbo Inlets» Click here.

Details

Shipping Information

  • Item Requires Shipping
  • 3.0 lbs.
  • W19.1250” x H7.1250” x L7.3750”