IAG Threaded Plugs for FA Cylinder Heads (Set of 8) WRX 15-21 / FR-S / BRZ 13-20| IAG-ENG-2020 Maxima_1989-1994 fiber reinforced 4 ply silicon

fiber reinforced 4 ply silicon

7mm) orifice

An example would be when installing a Recaro slider

CTEK Cig-Plug fits both 12 millimeter and 21 millimeter outlets and has a maze-like strain relief for the user’s safety

or similar exhaust systems

IAG Threaded Plugs for FA Cylinder Heads (Set of 8) WRX 15-21 / FR-S / BRZ 13-20| IAG-ENG-2020 Maxima_1989-1994 fiber reinforced 4 ply siliconProduct 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