Perrin PSP-INT-428RD 3" Short Turbo Inlet Hose Red 2022-2026 Subaru WRX FA24

Vehicle Fitment

• 2022-2026 Subaru WRX (2.4L FA24DIT H4 Turbocharged, AWD)

Fitment Notes

• Short version - compatible with the following intake systems only: AEM, BMS, ETS V2 (straight coupler), K&N, Mishimoto, Process West.
• NOT compatible with ETS V1, Cobb, OEM, or Perrin intakes - for those applications use the Long version (PSP-INT-427RD).
• Also available in Black (PSP-INT-428BK).
• No ECU tune required for installation - tuning recommended to maximize power gains.
• Estimated install time: approximately 150 minutes.

Features

• Short-version design engineered specifically for ETS V2, AEM, BMS, K&N, Mishimoto, and Process West intake systems
• 3.0" internal diameter vs. 2.6" OEM - larger smooth bore delivers 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
• No ECU tune required - safe for stock and modified vehicles

Specifications

• Part Number: PSP-INT-428RD
• Color: Red
• Version: Short
• 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
• Compatible Intakes: AEM, BMS, ETS V2, K&N, Mishimoto, Process West
• 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 Short Turbo Inlet Hose - Red
• 1x Perrin Turbo Inlet Adapter (intake-specific)
• 1x Installation hardware kit
• 1x Warranty card and installation instructions

Product Description

The Perrin PSP-INT-428RD is the red short-version 3.0" silicone turbo inlet hose for the 2022-2026 Subaru WRX FA24DIT, engineered specifically for use with ETS V2, AEM, BMS, K&N, Mishimoto, and Process West intake systems. Like its long-version counterpart, it replaces the factory plastic inlet - which is prone to vacuum leaks from flex and deformation - with a CNC-machined billet aluminum flanged hose that seals tightly against the turbocharger using the OEM O-ring. The result is a more efficiently pressurized turbocharger delivering +10-15 wheel horsepower and +5-10 ft-lbs. of torque without requiring a tune.

The short design uses a smooth 3.0" internal bore - 15% larger than OEM - and eliminates the factory's restrictive corrugated ribbing. Stainless steel wire reinforcement embedded in the multi-layer silicone prevents collapse under high boost conditions. If your vehicle runs an ETS V1, Cobb, OEM, or Perrin intake, choose the long version instead (PSP-INT-427RD). Also available in Black (PSP-INT-428BK). Backed by Perrin's 5-year limited warranty and made in the USA.