IAG Threaded Plugs for FA Cylinder Heads (Set of 8) WRX 15-21 / FR-S / BRZ 13-20| IAG-ENG-2020 Maxima_1989-1994 72 hours for a complete

72 hours for a complete bond

or similar exhaust systems

Designed to fit seamlessly over your factory color-coded piece

30% Throw reduction

7mm) orifice

IAG Threaded Plugs for FA Cylinder Heads (Set of 8) WRX 15-21 / FR-S / BRZ 13-20| IAG-ENG-2020 Maxima_1989-1994 72 hours for a completeProduct Fitment: 2015 2021 Subaru WRX 2013 2020 Subaru BRZ 2013 2016 Scion FR S Prevent catastrophic coolant and oil contamination issues with the IAG FA20 Cylinder Head Threaded Freeze Plug Upgrade. The FA20 engines OEM pressed in freeze plugs are notorious for falling out under heat and pressure, especially in high performance or modified setups. IAG's solution? Replace them with reliable threaded zinc plated plugs that are precision machined and