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The COBB rear differential subframe mount bushing inserts are made for 2008–2021 Subaru WRX and STI models, including 2018 Type RA and 2019 S209. These bushing inserts replace factory components to stabilize the rear differential and subframe, helping reduce movement under load and improving driveline feel. A focused replacement part for maintenance or upgraded chassis response.
Cobb 08-21 Subaru WRX & STI/2018 Type RA/2019 S209 Rear Differential Subframe Mount Bushing Inserts
