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High-performance high-torque compound
One purchase addresses the three main variables -- spring rate
Built to meet or exceed OEM standards
Whiteline's Grip Series kit builds on that foundation
GrimmSpeed Intercooler Core - 2015-2021 Subaru WRX / STI PDM_aftermarket-mirrors High-performance high-torque compoundGrimmSpeed Intercooler Core, 2015 2021 Subaru WRX STI The GrimmSpeed Intercooler Core for the 2015 2021 WRX and STI is a standalone replacement core for custom TMIC builds or core replacement in an existing installation. Provides improved cooling capacity over the factory core. DETAILS Standalone core, for custom builds or replacement Larger volume than OEM Fitment: 2015 2021 Subaru WRX STI Used when building a custom top mount intercooler or