Perrin PSP-INT-421BK Turbo Inlet Hose Subaru

Perrin PSP-INT-421BK Turbo Inlet Hose Subaru
Item# PSP-INT-421
Regular price: $254.00
Your price: $228.60

Product Description

Perrin PSP-INT-421BK Turbo Inlet Hose Subaru

Silicone is now seeing a resurgence as a durable and superior material in performance motorsports. 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.

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.

08+ Specific Design - The PERRIN inlet hose for the 08+ WRX and Legacy GT is the only inlet hose specifically made for this car. This is not just the STI version adapted to fit like other inlet hoses. This is specific to the engines with the plastic intake manifold with specially designed spigots and BOV fitting.

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.

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.

Box Contents:

  • (1) Perrin Subaru Inlet Hose
  • (1) Polished coupler
  • All necessary hardware
  • Instructions
  • Stickers
  • Warranty
  • (2) Perrin License Plate Frames


  • 08-12 Subaru Impreza WRX
  • 05-08 Subaru Legacy GT
  • 09+ Subaru Forester XT

Import Parts Pro, LLC
19505 Wied Rd
Suite E
Spring, Texas 77388
Tel: 281-288-0700
Fax: 281-288-0836
AIM: KyleatIPP
Yahoo: KyleatIPP