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Home   /   15+ STI Cooling   /   Precision Works Cylinder 4 Cooling Mod - 04-21 STI / 02-14 WRX

    Precision Works Cylinder 4 Cooling Mod - 04-21 STI / 02-14 WRX

    SKU: PW-COOLANT-MOD-SUB

    $50.00 $75.00

    or 4 payments of $12.50 with
    ⓘ

    Starting at $9/mo with . See if you qualify

    Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines

    Key Features:

    • Increase flow to cylinder 4
    • Reduce cylinder 4 temperatures to keep all cylinders temp. even
    • Reduce knock and detonation
    • Prevent ring land failure
    • 6061 billet aluminum
    • Precision CNC machined
    • Multi-layer silicone hose
    • Stainless steel clamps

    Designed to work with the following Subaru:

    • Subaru EJ20 EJ25 Engines
    • Subaru WRX 02-14
    • Subaru STI 2004+
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