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Torque Solution Subaru EJ Engines High Flow Billet Thermostat Housing

TQSTS-SU-755HF
TS-SU-755HF
Thermostat Housings
Out of stock
$ 199.99

SKU: TS-SU-755HF

Torque Solution Subaru EJ Engines High Flow Billet Thermostat Housing

The Torque Solution TS-SU-755HF High Flow Billet Thermostat Housing is the best performance upgrade for Subaru EJ engines seeking improved coolant flow, faster warm-up, and enhanced reliability under high-boost or track conditions. CNC-machined from premium 6061-T6 billet aluminum with a larger internal passage design, this housing eliminates the restrictive factory plastic unit prone to cracking and flow restriction ideal for WRX/STI, Legacy GT, Forester XT, or any EJ-series turbocharged build where consistent cooling and thermostat function are critical for preventing overheating and maximizing engine longevity.

Key Features

  • High Flow Design: Enlarged internal passages for improved coolant circulation and reduced restriction
  • Billet 6061-T6 Aluminum: Lightweight, strong, and corrosion-resistant far superior to factory plastic
  • Precision CNC Machined: Perfect fitment with OEM-style thermostat and gasket surface
  • Black Anodized Finish: Sleek, durable coating with Torque Solution branding for clean engine bay look
  • Direct Bolt-On Fit: Replaces factory housing uses stock thermostat, gasket, and mounting points
  • Torque Solution Quality: Trusted in Subaru performance engineered for high-boost and track reliability

Specifications

Specification Detail
Part Number TS-SU-755HF
Material 6061-T6 Billet Aluminum
Finish Black Anodized
Compatibility Subaru EJ Engines (EJ20, EJ25 – WRX/STI, Legacy GT, Forester XT)
Installation Direct Bolt-On (Uses Factory Thermostat & Gasket)
Country of Origin United States
Warranty Limited Lifetime (Torque Solution)
Shipping Weight Approx. 1-2 lbs

Product Notes

  • High flow thermostat housing eliminates factory plastic failure and restriction
  • Improves coolant flow for better temperature control under boost or track use
  • Uses stock thermostat and gasket no additional parts required

Installation Notes

  • Estimated time: 30-60 minutes, easy difficulty, basic hand tools required
  • Drain coolant, remove factory housing, install new billet unit with stock thermostat/gasket, torque to spec
  • Refill coolant and bleed system professional installation optional

This Part Fits

Year Make Model Notes
1992-2021 Subaru Impreza WRX / WRX STI EJ20 / EJ25 Engines
2004-2009 Subaru Legacy GT / Outback XT EJ255 / EJ257 Engines
2003-2014 Subaru Forester XT EJ25 Turbo Engines
Various Subaru EJ Series Swaps Custom Turbo Builds

Why Choose Torque Solution High Flow Billet Thermostat Housing?

  • High flow design eliminates factory restriction better cooling and temperature stability
  • Billet aluminum construction prevents cracking common with stock plastic housings
  • Limited lifetime warranty trusted upgrade for Subaru EJ performance builds

Frequently Asked Questions

  • Q: Will this housing fit my 2015 Subaru WRX STI EJ257?
    A: Yes, Torque Solution TS-SU-755HF fits all Subaru EJ20/EJ25 engines (WRX/STI, Legacy GT, Forester XT).
  • Q: Do I need a new thermostat?
    A: No, uses factory thermostat and gasket for direct replacement.
  • Q: Does it improve cooling?
    A: Yes, larger passages reduce restriction and improve coolant flow under boost.
  • Q: What is the warranty?
    A: Covered by Torque Solution Limited Lifetime Warranty built to last.

Shipping & Handling

  • Method: UPS/FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure protective packaging
  • Weight: Approx. 1-2 lbs

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