GrimmSpeed Ultimate Cooling Bundle | 2015-2021 Subaru WRX STI (GRM.1292.5)

Ultimate Cooling Bundle for 2015-2021 Subaru WRX STI by GrimmSpeed

When horsepower climbs, so does the heat. Whether you're daily driving, track prepping, or chasing peak performance on your 2015–2021 Subaru STI, this cooling bundle delivers the reliability and efficiency your setup demands. Grimmspeed has combined the GrimmSpeed Front Mount Intercooler Kit with your choice of a CSF Race-Spec Aluminum Radiator—available in raw aluminum or black-coated finish—to help keep coolant and charge temps in check no matter how hard you drive.

Cooling systems aren’t just about preventing damage—they’re about unlocking consistent performance. This bundle tackles both sides of the equation: CSF’s 42mm radiator efficiently handles engine coolant temps, while GrimmSpeed’s high-capacity front mount intercooler crushes heat soak and intake charge issues. Together, they create a rock-solid foundation for reliable power delivery in any condition.

Features

• Large 24" x 11" x 4" bar-and-plate core Intercooler for superior heat dissipation
• 42mm 2-row core with B-Tube Technology Radiator for increased efficiency
• All-aluminum construction with TIG-welded end tank Radiator

Benefits

• No tuning required for installation
• Direct-fit design works with OEM fans and hoses
• Individually pressure tested and vibration cycle validated

Applications

• 2015-2021 Subaru WRX STI

What's In The Box?

• 1 - Radiator
• 1 - Intercooler
• CNC machined BPV flange
• Brackets and all necessary hardware

Warranty

• Limited Manufacturers Warranty