Mishimoto MMHOSE-SUB-INT4BK Black SiliconeIntercooler Hoses for 04-07 Subaru STI

Vehicle Fitment

• 2004-2007 Subaru Impreza WRX STI (USDM) turbo AWD
• Includes WRX STI and STI Limited trims where applicable
• Designed for USDM engine/intercooler plumbing

Features

• Direct OEM-replacement silicone intercooler hose kit
• Made from high-grade silicone with heat-resistant embedded fibers
• Smooth interior surfaces for improved airflow to the intercooler
• Higher pressure tolerance vs. OEM rubber hoses
• Helps reduce heat and increases durability under boost loads
• Includes multiple sizes of T-bolt clamps for secure fitment
• Black finish for enhanced engine bay appearance
• Easy bolt-on installation - no trimming or modification needed
• Backed by Mishimoto Lifetime Warranty

Specifications

• Part Number: MMHOSE-SUB-INT4BK
• Material: Reinforced high-grade silicone
• Color: Black
• Application: Intercooler hose kit
• Compatible Vehicles: Subaru WRX STI USDM 2004-2007
• Max Temperature Rating: ~330 °F (~166 °C)
• Includes: (3) silicone hoses and assorted T-bolt clamps

Included Components

• 3x Black silicone intercooler hoses
• 2x 3" T-bolt clamps
• 2x 2.25" T-bolt clamps
• 1x 1.5" T-bolt clamp
• 1x 1.25" T-bolt clamp
• Mishimoto Lifetime Warranty documentation

Product Description

The **Mishimoto MMHOSE-SUB-INT4BK** Black Silicone Intercooler Hose Kit is engineered as a **direct replacement for the OEM intercooler hoses** on **2004-2007 Subaru Impreza WRX STI** turbo AWD models. These hoses are constructed from high-grade silicone reinforced with heat-resistant fibers to better handle high temperatures and increased boost pressures commonly seen in performance and tuned applications. The smooth internal surface reduces airflow turbulence, helping boost response and intercooler efficiency compared to stock rubber hoses.

This kit installs easily with no cutting or modification required, using the included assortment of robust T-bolt clamps to ensure a secure, leak-free fit. The black finish enhances under-hood aesthetics while offering long-lasting durability under daily driving, spirited street use, or track conditions. Backed by Mishimoto's Lifetime Warranty, the MMHOSE-SUB-INT4BK provides a reliable upgrade that improves pressure tolerance and airflow performance over the original intercooler hoses.