IW STi Forum banner

cooling mod

  1. Cylinder #4 Cooling Mod - Getting ready to install

    2.5 Liter/Litre Factory Motor
    So I'm pulling my 2014 STi out of storage on Monday and I'll be performing the cylinder #4 cooling mod in a few weeks. I'd like to learn of any tips or trick the community has for performing this. Namely: When draining the coolant, is it best to just pull the lower hose on the radiator? Or...
Top