Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines Skid Plate K-Series K20 Tri-Y Header

K-Series K20 Tri-Y Header

it prevents large debris from entering into the turbo housing

STI 2007-2018

They are made from high strength mild steel making the welds stronger and more durable

Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines Skid Plate K-Series K20 Tri-Y HeaderPrecision 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+