aFe 46-20378-R BladeRunner 2.5" Hot-Side Intercooler Tube Red for 15-2

Vehicle Fitment

• 2015-2021 Subaru WRX (H4 2.0L Turbo)

Features

• BladeRunner 2.5" hot-side intercooler tube for improved airflow and turbo efficiency
• Mandrel-bent TIG-welded aluminum construction for durability and strength
• Outflows stock OE plastic tube by up to ~30%, reducing pressure loss
• CNC-machined turbo inlet flange with O-ring for a leak-free connection
• 1/8" NPT port for optional boost sensor or water/methanol injection
• Textured red powder-coated finish resists heat and corrosion
• Includes heavy-duty 5-ply silicone couplings and stainless-steel spring-loaded T-bolt clamps
• Direct-fit installation - no cutting or modifications required

Specifications

• Part Number: 46-20378-R
• Series: BladeRunner
• Type: Hot-side intercooler / charge tube
• Tube Diameter: ~2.5" (63 mm)
• Material: Mandrel-bent TIG-welded aluminum
• Finish: Textured red powder coat
• Fitment: Subaru WRX 2015-2021 H4 2.0L turbo
• Port: 1/8" NPT for sensors or injection systems
• Installation: Direct fit - factory mounting points

Included Components

• 1x BladeRunner 2.5" hot-side intercooler tube (red)
• 2x High-temp 5-ply silicone couplings
• 2x Stainless-steel spring-loaded T-bolt clamps
• Installation hardware

Product Description

The aFe **46-20378-R BladeRunner 2.5" Hot-Side Intercooler Tube** is a premium performance upgrade for **2015-2021 Subaru WRX** models equipped with the **2.0L turbocharged flat-four engine**. This direct-fit tube replaces the restrictive factory plastic pipe with **mandrel-bent aluminum** for smoother airflow, reducing pressure loss and improving turbo efficiency. Outflows the stock OE tube by up to ~30%, enhancing throttle response and horsepower potential.

Finished in **textured red powder coat**, this intercooler tube includes **5-ply silicone couplings**, **spring-loaded T-bolt clamps**, and a **CNC-machined inlet flange with O-ring seal** for leak-free, direct-fit installation. The integrated **1/8" NPT port** allows connection of boost sensors or water/methanol injection systems. This BladeRunner tube delivers improved airflow, durability, and engine bay style - perfect for WRX enthusiasts seeking performance gains without modifications.