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162% increase in external fin surface area
GrimmSpeed Turbo to O2 Housing Gasket
and blanks to plug unused water ports
The stainless steel construction resists the corrosion and scaling that degrades factory and lower-quality aftermarket exhaust systems over time
The Gold finish suits a wide range of engine bay color schemes and the knurled grip makes oil changes slightly less annoying
GrimmSpeed 4-Piston Brake Caliper Kit (340mm Rotor) - Red - 2013-2025 Scion FR-S / Subaru BRZ / Toyota GR86 PDM_auxiliary-lighting 162% increase in external finGrimmSpeed 4 Piston Brake Caliper Kit (340mm Rotor) , Red The GrimmSpeed 4 Piston Brake Caliper Kit with 340mm rotor for the 2013 2025 Scion FR S, Subaru BRZ, and Toyota GR86 replaces the factory front single piston sliding calipers with a purpose built fixed 4 piston aluminum caliper and matched rotor package. The result is improved clamping force, better heat management, more consistent pedal feel, and the visual statement of a proper performance