Perrin Turbo Inlet Hose Blue 08-14 WRX / 05-09 LGT / 05-09 Outback XT / 09-13 Forester XT | Increased Airflow | Performance Turbo Inlet Hose
Overview
The Perrin Turbo Inlet Hose is a high-performance replacement designed to improve airflow and boost horsepower for select Subaru models including the 2008-2014 WRX, 2005-2009 Legacy GT, 2005-2009 Outback XT, and 2009-2013 Forester XT. This turbo inlet hose replaces the restrictive OEM part with a smooth, larger diameter silicone hose that reduces turbo spool time and enhances throttle response without requiring ECU tuning. It’s ideal for Subaru enthusiasts looking to extract more power and responsiveness from their turbocharged engines while adding a clean, blue aesthetic to the engine bay.
Engineered with advanced silicone technology, the Perrin inlet hose features a smooth internal surface free of the OEM’s pleats, which are known to restrict airflow. Reinforced with a stainless steel support wire embedded within the silicone layers, this hose maintains rigidity under high boost pressures and prevents collapse, even when paired with restrictive air filters or larger turbo setups. The inclusion of a glass-filled nylon coupler and machined aluminum blow-off valve connection further exemplifies Perrin’s commitment to durability and precision engineering.
For Subaru owners, this turbo inlet hose offers tangible performance gains by increasing airflow efficiency, which translates to quicker turbo spool, improved acceleration, and enhanced throttle response. The plug-and-play design includes an OEM-style crankcase vent connector that preserves emissions compliance without modification. Whether you’re running a stock tune or planning future ECU calibration, this inlet hose provides a solid foundation for improved turbo performance and reliability.
Features & Specifications
This Perrin Turbo Inlet Hose is engineered for Subaru WRX, Legacy GT, Outback XT, and Forester XT models, featuring a smooth, large-diameter silicone construction reinforced with stainless steel support wire. Designed to improve airflow and durability, it delivers increased horsepower and throttle response for Subaru enthusiasts seeking reliable, bolt-on performance upgrades.
-
Brand: Perrin Performance
-
Product: Turbo Inlet Hose Blue 08-14 WRX / 05-09 LGT / 05-09 Outback XT / 09-13 Forester XT
-
Part Number: PSP-INT-421BL
-
Fitment: 08-14 Subaru WRX, 05-09 Legacy GT, 05-09 Outback XT, 09-13 Forester XT
-
Material: Silicone with stainless steel reinforcement
-
Finish: Blue silicone
-
Construction: Molded silicone with embedded stainless steel support wire
-
Origin: Made in USA
-
No Tuning Required: Yes, safe for stock ECU operation
-
Blow Off Valve Connection: Machined aluminum insert bonded into silicone
-
Coupler Material: Glass-filled reinforced nylon
-
Crank Case Vent Connector: OEM-style plug-and-play design
Key Benefits
-
Performance: Increases horsepower and torque by improving turbo inlet airflow and reducing spool time
-
Durability: Stainless steel reinforcement prevents hose collapse under high boost and harsh conditions
-
Fitment: Direct bolt-on replacement with OEM-style crankcase vent connector for easy installation and emissions compliance
-
Quality: High-grade silicone and reinforced nylon coupler ensure long-lasting performance and resistance to heat and wear
-
Throttle Response: Smooth internal surface eliminates airflow restrictions, enhancing acceleration and engine responsiveness
-
Installation: Includes blow-off valve connection and large high-flow spigots for crankcase and vacuum lines
What's Included
- 1× Perrin Turbo Inlet Hose (Blue)
- 1× Glass-filled reinforced nylon coupler
- 1× Diagnosis connector
- 1× 48mm clamp
- 1× 36mm clamp
- 1× 6mm clamp
- 1× M8 hex head bolt
- 2× 1/2"-1/2" 90 degree connectors
- 2× 1/2"-3/8" 90 degree connectors
- 1× Perrin license plate frame
- Installation instructions
Installation & Compatibility
The Perrin Turbo Inlet Hose is a straightforward, bolt-on upgrade designed for easy installation with basic hand tools. Its plug-and-play crankcase vent connector eliminates the need to modify or defeat emissions components, preserving factory compliance. No ECU tuning is required to realize power gains, making it an ideal upgrade for stock or lightly modified Subaru WRX, Legacy GT, Outback XT, and Forester XT models. However, additional power can be unlocked with proper ECU calibration if desired. The hose’s reinforced construction ensures compatibility with larger turbo setups and high boost pressures without risk of collapse.
-
Professional Installation: DIY-friendly
-
Modifications Required: None
-
Verify Compatibility: Confirm fitment for your specific year and model before purchase
Shop with confidence at Subimods—your Subaru parts specialists.
