Performance Cylinder 4 Coolant Mod for Subaru WRX STI EJ20/EJ25 Engines Lift Kits ensuring proper engine placement and

ensuring proper engine placement and alignment for both street and race builds

2007 Subaru WRX STI (STI ONLY / GDB)

Stand out on the road with our race-inspired muffler and dual 3

Signal 2 must be connected to the second Auxiliary in the selected pair

NTXGLOW Custom Hand-Built RGB SetupEach pair is opened

Performance Cylinder 4 Coolant Mod for Subaru WRX STI EJ20/EJ25 Engines Lift Kits ensuring proper engine placement andDescription 100% Brand New Color: BLACK Cylinder 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 Compatible with All EJ20 EJ25 engines 2002 2014 Subaru WRX 2004