WRX OEM Engine Replacement – Boosted Engineering
WRX OEM Engine Replacement – Boosted Engineering Overview
The Boosted Engineering FA20DIT Refresh Package is the perfect option for WRX owners wanting a fresh, reliable engine without stepping into a forged build.
This engine uses a brand-new OEM Subaru FA20DIT shortblock, professionally assembled and refreshed with upgraded durability components, precision tolerances, and fully serviced cylinder heads.
Ideal for tuned street cars and daily applications where OEM drivability and reliability are the priority.
Build Includes
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Brand-new OEM Subaru FA20/24DIT shortblock
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OEM pistons & rods
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Race-grade rod & main bearings
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New OEM gaskets & seals
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Heads disassembled, cleaned, pressure-tested & machined
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Valve train inspected & replaced where required
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Balanced and professionally assembled
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Correct tolerances set for tuned WRX use
Recommended For
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Factory turbo & bolt-on upgrades
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Daily and spirited street driving
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Customers wanting a new reliable foundation without forging
For high-boost or big-power setups, see our BE650 Forged FA20DIT option.
Fitment
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Subaru WRX FA20DIT — 2015–2021
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Not for 86/BRZ (FA20 NA) or GR86 (FA24)
Turnaround Time
Approx. 2–4 week build time once parts & booking are confirmed.
Installation
Professional installation recommended
✅ Installation available at our Carrara, QLD workshop
✅ Warranty
10,000km / 12-month limited performance warranty
Assembly workmanship only. Professional tuning & installation required.
Supporting Modifications
The following are typically required to run this kit at intended output. Boosted Engineering can supply or advise on all of them.
- ECU tune (custom)Boosted Engineering supplies base map
- Upgraded fuel systemInjectors, fuel pump — spec varies with output
- Upgraded ignitionR35 coilpack conversion recommended
- Upgraded clutchTwin-plate for higher-power builds
- Oil cooler kitRecommended for sustained high-load use
- Upgraded axlesFor 350+ kW builds
Street, Circuit & Drag
The Street Kit is designed for daily-drivable turbo builds with reliable, responsive power delivery. The Race Kit is oriented toward circuit and drag use where higher output and modular servicing are priorities.
Fitment & Install
The kit is designed for bolt-on installation in a suitably-equipped workshop. Installation is available at our Carrara QLD workshop, or through our trusted partner network in most metropolitan areas.
Approximate installation time — 20 to 30 hours depending on configuration and supporting work.
Questions & Answers
Specifications
Talk to the workshop
Not sure which configuration suits your build? Our workshop team can help you spec the correct kit for your goals.
Carrara QLD 4211