SKU: TS-SU-478-8
Torque Solution 8mm Phenolic Thermal Intake Spacer for 2002-2021 Subaru EJ Engines
This Torque Solution 8mm phenolic thermal intake spacer installs between the intake manifold and cylinder head on Subaru EJ25 turbo engines. It fits models like WRX STI Forester XT Legacy GT and Impreza reducing heat soak for cooler intake air. Expect gains in horsepower torque and throttle response from denser air charge.
Key Features
- Phenolic Construction: High-temperature phenolic material blocks up to 99% of engine heat transfer to the intake manifold keeping air temps low.
- 8mm Thickness: Precision 8mm spacer creates optimal plenum volume for improved air velocity and power across RPM range.
- Power Gains: Delivers 5-15 horsepower and torque increases by lowering intake air temperatures 20-60 degrees Fahrenheit.
- Throttle Response: Reduces heat-related restrictions for sharper acceleration and consistent performance.
- Direct Bolt-On: CNC-machined for perfect fit using factory hardware no modifications required.
Product Notes
- MPN TS-SU-478-8 designed specifically for Subaru EJ25 4-port turbo heads.
- Inspect O-rings during install replace if worn for leak-free seal.
- Securely packaged for fast shipping arrives ready to install.
Installation Notes
- Professional installation recommended.
- Remove stock intake gasket clean mating surfaces before install.
- Compatible with OEM intake manifold and throttle body hardware.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2009 | Subaru | Legacy | GT spec.B |
| 2015-2020 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2020 | Subaru | WRX STI | Limited |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
| 2008 | Subaru | Forester | Sports 2.5 XT |
| 2004-2005 | Subaru | Forester | XT |
| 2009 | Subaru | Forester | XT |
| 2006-2010 | Subaru | Forester | XT Limited |
| 2005 | Subaru | Forester | XT Premium |
| 2010-2013 | Subaru | Forester | XT Premium |
| 2011-2013 | Subaru | Forester | XT Touring |
| 2009-2010 | Subaru | Impreza | 2.5 GT |
| 2002-2014 | Subaru | Impreza | WRX |
| 2006-2007 | Subaru | Impreza | WRX Limited |
| 2009-2014 | Subaru | Impreza | WRX Premium |
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2006-2007 | Subaru | Impreza | WRX TR |
| 2010-2012 | Subaru | Legacy | 2.5GT |
| 2005-2006 | Subaru | Legacy | GT |
| 2005 | Subaru | Legacy | GT Limited |
| 2007-2009 | Subaru | Legacy | GT Limited |
Why Choose Torque Solution?
- Proven leader in Subaru performance parts with thousands of installs.
- Anodized billet aluminum and phenolic components built for durability.
- Engineered in USA for exact fit and reliable long-term performance.
Frequently Asked Questions
- Q: Will this fit my 2015-2020 Subaru WRX STI?
A: Yes it fits Base Limited Launch Edition and HyperBlue models with EJ25 turbo engines. - Q: What material is used in this spacer?
A: High-temperature phenolic resin resistant to 500 degrees F for maximum heat isolation. - Q: What warranty comes with this part?
A: Lifetime limited warranty against manufacturing defects covers normal use.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box 7 x 5 x 1.5 inches protective foam insert
- Weight: 0.45 lbs
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