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Old 04-26-2022, 08:36 AM   #1
ProudBoy267
Scooby Newbie
 
Member#: 529110
Join Date: Mar 2022
Chapter/Region: Tri-State
Location: Bucks County, PA
Vehicle:
2021 WRX

Default Is cylinder 4 mod necessary…

I’ve been reading tsb’s and opinions on a few different Subaru forums including this one. Some say it’s true some say it’s not. Can someone tell me definitively that on 2020 and 2021 wrx’s Subaru fixed the cylinder 4 cooling issue and the get-a-Dom cylinder 4 cooling mod isn’t required on the newer fa20s from 2020 and 2021s…. This sucks finding conflicting information. Anyone with a 2020 or 2021 bought the cooling mod and went in there just to see it’s fixed from the factory?
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