Perrin PSP-INT-427BK 3" Turbo Inlet Hose Black for 2022-2026 Subaru WRX FA24

Vehicle Fitment

• 2022-2026 Subaru WRX (2.4L FA24DIT H4 Turbocharged, AWD)
• 2020-2026 Subaru Outback XT / Outback XT Wilderness (2.4L FA24DIT H4 Turbocharged, AWD)
• 2020-2026 Subaru Legacy XT (2.4L FA24DIT H4 Turbocharged, AWD)
• 2019-2026 Subaru Ascent (2.4L FA24DIT H4 Turbocharged, AWD)

Fitment Notes

• Compatible with the following intake systems - intake-specific adapter included in box: Perrin, OEM, AEM, AFE, AMS (see compatibility notes), BMS, K&N, Cobb (see compatibility notes), Mishimoto, ETS V1 (see compatibility notes), ETS V2, Process West, RAE, Takeda.
• For ETS V1, Cobb, and AMS intakes - the inlet hose may require trimming for proper fitment. Verify compatibility prior to purchase.
• Also available in Red (PSP-INT-427RD).
• No ECU tune required for installation - tuning recommended to maximize power gains.
• Estimated install time: approximately 150 minutes.

Features

• 3.0" internal diameter vs. 2.6" OEM - larger smooth bore allows significantly greater unrestricted airflow to the turbo
• Eliminates the factory-designed leak at the turbocharger inlet, reducing how hard the turbo must work to reach target boost levels
• Adds +10-15 wheel horsepower in the top end and +5-10 ft-lbs. of torque in the mid-RPM range
• Stainless steel support wire embedded within silicone layers prevents hose collapse under restrictive filter elements and high boost setups
• CNC-machined aluminum billet flange with OEM O-ring for a vacuum-tight seal at the turbocharger inlet
• Smooth internal walls with gradual bends replace OEM corrugated ribbing and sharp angles for reduced turbulence and pressure drop
• Heat-resistant multi-layer silicone construction - will not expand or break down over time
• No ECU tune required - safe for stock and modified vehicles

Specifications

• Part Number: PSP-INT-427BK
• Color: Black
• Hose Material: Multi-layer silicone with stainless steel wire reinforcement
• Hose Internal Diameter: 3.0" (vs. 2.6" OEM)
• Flange Material: CNC-machined aluminum
• Flange Finish: Black anodized
• Power Gain: +10-15 whp top end / +5-10 ft-lbs. mid-RPM torque
• Tune Required: No (recommended for maximum gains)
• Estimated Install Time: ~150 minutes
• Warranty: 5-year Perrin limited warranty
• Made in USA
• Brand: Perrin Performance

Included Components

• 1x Perrin Turbo Inlet Hose - Black
• 1x Perrin Turbo Inlet Adapter (intake-specific)
• 1x Installation hardware kit
• 1x Warranty card and installation instructions

Product Description

The Perrin PSP-INT-427BK is a 3.0" silicone turbo inlet hose for the 2022-2026 Subaru WRX FA24DIT, designed to replace the factory plastic inlet that is prone to vacuum leaks caused by flex and deformation over time. By sealing this factory-designed leak with a CNC-machined billet aluminum flange and OEM O-ring, the turbocharger operates more efficiently - reaching target boost with less effort and delivering measurable gains of +10-15 wheel horsepower and +5-10 ft-lbs. of torque without requiring a tune. The smooth 3.0" internal bore is 15% larger than the OEM part and eliminates the restrictive ribbing and sharp angles of the factory hose.

Stainless steel wire reinforcement embedded in the multi-layer silicone prevents collapse under high boost or restrictive filter setups. The PSP-INT-427BK includes intake-specific adapters covering a wide range of popular aftermarket intakes including Perrin, OEM, AEM, AFE, BMS, K&N, Mishimoto, ETS V2, and Process West - with compatibility notes for ETS V1, Cobb, and AMS. Also available in Red (PSP-INT-427RD). Backed by Perrin's 5-year limited warranty and made in the USA.