DEAD SE-RIOUS

Initial impressions: The combo of Koyorad and STI thermostat is pretty great. Ambient temps were 90F. Drove for about 15-20 min around the area. Stopped at lights, got on the freeway up to 65 mph and temps ranged from 178-185F with cruising temp pegged at 180F once the engine warmed up. Typically I'd see temps ranging from 187-201F with a cruising temp of 190F.

 

 

Where are you located? If you’re only seeing 185° so far with an ambient temp of around 90° that’s awesome. I’m from NYC we get a mix of hot/cold. That’s gonna suck come winter when it’s around 32° sometimes lower. The heat won’t most likely get very warm. I’m definitely interested in upgrading the cooling on mine as well.

Love that graphite

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Oh ok.

 

It will come down to sourcing the right rad. Most of the STI rads are 30+mm thick and that is simply too thick to fit without mods.

 

Maybe a Forester rad will work better. The rad I used is speced for both 2010-up Legacy and 09-up Forester IIRC.

Which one do you have? Model info?

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Sorry, tried which?

Anyone else have no modification like you. I’m bone stock, so I’m hoping I too won’t have to modify anything.

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Just put the rad on. Fit perfect with no mods at all.

 

Fans shifted back a bit but nowhere near enough to worry about hitting anything.

 

This is with a 26mm thick rad, stock is 16mm.

 

I did the thermostat while the rad was out too. Put in an OE STI 78 deg thermostat and new OE thermostat housing gasket.

Nice. Has anyone else tried this with no modifications at all?

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I definitely need one of these [emoji7][emoji7][emoji7]

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