Aeroflow Zinc Anode Plug 1 4 Npt For AF49-2500 WRX STI Easy to install and remove

Easy to install and remove for maintenance or turbo upgrades

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The fresh air valve allows for incoming charged fresh air from the turbo to be diverted safely into the exhaust manifold pre-turbine wheel with the throttle at low opening angles to allow for safer spooling of the turbocharger without the potentially damaging throttle based late combustion event style anti-lag that can induce high engine stresses and break connecting rods

Aeroflow Zinc Anode Plug 1 4 Npt For AF49-2500 WRX STI Easy to install and removeinsert to control electrolysis in cooling systems. Zinc Anode Plug. Sacrificial zinc anode insert to control electrolysis in cooling systems. Screws in to any 1 4NPT port.