PLM Subaru Cylinder 4 Chamber Coolant Mod System 2002-2014 WRX / 2004-2021 STI

Description:
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. Keep your EJ happy by installing our kit. Don't overpay and buy with confidence.

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

Includes:
- 1 x Multi-Layer Silicone Hose
- 1 x 6061 Billet Aluminum 10an to Metric Straight Thread Fitting Adapter
- 1 x 6061 Billet Aluminum 5/8 Barbed Tee Fitting
- 4 x Worm Clamps Stainless Steel

Applications:
2002-2007 WRX
2004-2007 STI
2008-2014 WRX
2008-2014 STI
2015-2021 STI
2004-2008 Forester XT
2005-2009 Legacy GT
2005-2009 Outback XT