Mishimoto MMHOSE-STI-08RD Red Silicone Radiator Hose Kit for08-21 Subaru WRX/STI

Vehicle Fitment

• 2008-2021 Subaru WRX STI (EJ257 2.5L Turbo)
• 2008-2014 Subaru WRX (EJ255 2.5L Turbo)
• Also fits select Subaru models like Forester XT, Legacy GT, Outback XT (2005-2013) when OEM coolant routing matches

Features

• Direct OEM-replacement silicone radiator hose kit
• Premium high-grade silicone with embedded heat-resistant fibers
• Improves pressure tolerance compared to stock rubber hoses
• Helps with heat soak reduction and consistent coolant flow
• Bright red finish enhances engine bay aesthetics
• Includes worm-gear clamps for secure, leak-free installation
• OEM-style fitment - no cutting or modification required
• Ideal for enthusiast drivers and performance builds
• Backed by Mishimoto Lifetime Warranty

Specifications

• Part Number: MMHOSE-STI-08RD
• Material: Multi-layer silicone with heat-resistant embedded fibers
• Color: Red
• Includes: (2) Silicone radiator hoses
• Clamps: (4) Worm-gear style included
• Max Temperature Rating: ~330 °F (~165 °C)
• Compatible Engines: EJ257 (STI), EJ255 (WRX)

Included Components

• 2x Silicone radiator hoses (upper and lower)
• 4x Worm-gear clamps
• Mishimoto Lifetime Warranty documentation

Product Description

The Mishimoto MMHOSE-STI-08RD Red Silicone Radiator Hose Kit is a premium cooling upgrade designed for **2008-2021 Subaru WRX STI** and **2008-2014 Subaru WRX** models equipped with turbocharged EJ series engines. Constructed from high-grade silicone reinforced with heat-resistant embedded fibers, these hoses replace aging OEM rubber hoses with components that offer improved heat tolerance and pressure resistance, helping maintain consistent coolant flow under spirited driving conditions.

This direct-replacement silicone hose kit installs easily without modification and includes high-quality worm-gear clamps for secure, leak-free fitment. The vibrant red finish not only improves under-hood looks but also signals upgraded performance reliability. While primarily designed for WRX and WRX STI cooling systems, this kit can also fit select Subaru models (like Forester XT, Legacy GT, Outback XT) with compatible coolant routing. Backed by Mishimoto's Lifetime Warranty, the MMHOSE-STI-08RD provides long-lasting durability and aesthetic appeal for enthusiasts and daily drivers alike.