Aftermarket Car Parts -Private Label Mfg

Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines

Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines - Main image
$50.25 $75 In stock

Category: Motor Vehicle Parts

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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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Scarlett U. ★★★★★

Installed this on my EJ207 and the coolant flow to cylinder 4 feels much more balanced now — the engine temps are noticeably more even across all cylinders during hard pulls. No more worrying about hot spots causing detonation.

Natalie O. ★★★★★

My EJ255 was always running hot on cylinder 4, but after installing this mod, the temperature spread across all cylinders is now within a few degrees. The increased flow to that specific cylinder really seems to work, and I've noticed less knock under hard driving.

Nicholas ★★★★★

Installed this on my EJ205 and the difference in coolant flow to cylinder 4 is immediately obvious when bleeding the system. The knock counts on that cylinder dropped noticeably on the next tune session, and temps are finally even across all four. Worth the effort for anyone running a stock head gas

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