Billet 4 Coolant Mod Subaru EJ Engines EJ20 EJ25 WRX STI Forester XT Legacy GT Turbo Manifolds 1 x Cast Aluminum Coolant

1 x Cast Aluminum Coolant Flange

NO installation guide included

2002-2004 Chrysler 300M

Black oxide finish

Billet 4 Coolant Mod Subaru EJ Engines EJ20 EJ25 WRX STI Forester XT Legacy GT Turbo Manifolds 1 x Cast Aluminum Coolant4 Coolant Mod Subaru EJ Engines EJ20 EJ25 4 Coolant Mod for Subaru EJ Engines was designed to increase coolant flow to cylinder #4 head area. The additional coolant flow helps reduce cylinder #4 coolant temps and keeps the temps more uniform with the rest of the cylinders. This helps reduce knock and detonation in cylinder #4, which is known to cause the dreaded EJ ringland failure. CNC'd 6061 Billet Aluminum Fittings Black Anodized Multi Layer