Mishimoto MMHOSE-SUB-ANC4BK Black Silicone Ancillary Hoses 2004–2007 Subaru WRX For Sale - New and Used

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Part Brand: Mishimoto

Part Number: MMHOSE-SUB-ANC4BK

Vehicle Fitment

• 2004–2007 Subaru Impreza WRX STI (GD Chassis; EJ257 2.5L Turbo Flat-4; AWD)
• 2006–2007 Subaru Impreza WRX (GD Chassis; EJ255 2.5L Turbo Flat-4; AWD)

Fitment Notes

• Fits 2.5L turbocharged EJ-series engines only — does not fit 2.0L EJ205 WRX models (2002–2005)
• The bottom expansion tank hose does not fit 2004–2005 STI models due to a larger factory port size
• This kit replaces ancillary hoses only — it is not a complete replacement for every factory hose in the engine bay
• No clamps are included — reuse factory clamps or purchase separately
• Color: Black (BK) — also available in Blue and Red

Features

• Direct OEM replacement fit for 2004–2007 Subaru WRX STI and 2006–2007 WRX 2.5L turbo ancillary hoses
• Dual-layer construction combining high-grade silicone with heat-resistant embedded fibers
• Withstands temperatures up to 330°F — significantly higher than factory rubber hose limits
• Increased pressure tolerance ideal for boosted applications and upgraded turbo setups
• Resists hardening, cracking, and deterioration caused by age, heat cycles, and oil exposure
• Retains all OEM routing and connection points for a clean, hassle-free installation
• Available in black, blue, or red to complement any engine bay build
• Backed by the Mishimoto Lifetime Warranty

Specifications

• Part Number: MMHOSE-SUB-ANC4BK
• Color: Black
• Material: Dual-Layer High-Grade Silicone with Heat-Resistant Embedded Fibers
• Max Temperature: 330°F
• Engine Fitment: EJ257 2.5L Turbo (STI), EJ255 2.5L Turbo (WRX)
• Quantity: Set of 7 Silicone Hoses
• Clamps: Not included
• OEM Part Number References: 99078AA073, 45162AE020

Included Components

• 7x Silicone Ancillary Hoses (application-specific set)

Product Description

The Mishimoto MMHOSE-SUB-ANC4BK is a direct-fit black silicone ancillary hose kit engineered for the 2004–2007 Subaru Impreza WRX STI and 2006–2007 Impreza WRX equipped with the 2.5L turbocharged EJ-series engine. The kit replaces the factory rubber ancillary hoses — which are prone to cracking, hardening, and failure with age and heat exposure — with seven precision-molded silicone hoses built from dual-layer high-grade silicone reinforced with heat-resistant embedded fibers. With a maximum temperature rating of 330°F and improved pressure tolerance, these hoses are well-suited for boosted daily drivers and modified builds alike.

All seven hoses are precision-matched to OEM routing and connection points for a straightforward installation using factory or aftermarket clamps (sold separately). Note that the bottom expansion tank hose does not fit 2004–2005 STI models due to a larger factory port size on those vehicles. Available in black, blue, or red, and backed by the Mishimoto Lifetime Warranty, this ancillary hose kit is a reliable, long-term cooling system upgrade for any GD-chassis WRX or STI owner.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

• Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
• Canada customers - If does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

• Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.

• Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
• Any returns received installed, mounted, used or missing components will be subject to return fee\'s.

· · · PAYMENTS · · ·

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· · · response · · ·

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