Koyo
Koyo 08-15 Subaru WRX / STI 05-09 Subaru Legacy GT 2.5L (MT / w/ Filler Neck) Radiator
VH091662
$471.30
CSF
MK3 Ford Focus ST High-Performance All-Aluminum Radiator
The CSF 31mm aluminum core is a big improvement over the factory core. A thicker core and increased fluid capacity drastically improves the amount of heat the system can absorb and dissipate. CSF's Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible cooling performance.
The Focus ST was very well engineered and performed admirably out of the box. However, a few upgrades can quickly lead to heat issues, especially on the track or in hot climates. An upgraded radiator from CSF is the perfect solution.
| Year(s) | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 2013-2018 | Ford | Focus | ST | L4.1999cc |