Koyo
Koyo 08-15 Subaru WRX / STI 05-09 Subaru Legacy GT 2.5L (MT / w/ Filler Neck) Radiator
VH091662
$471.30
CSF
BMW F-Chassis Gen 1 B58 High-Performance All-Aluminum Radiator
As more enthusiasts push the performance limits of F-Chassis BMWs, the factory radiator has started to show its age. Increased boost and upgraded turbos generate significantly more heat, and the stock system can struggle to keep up. Combined with the heat exchanger mounted in front of the radiator, engine coolant temps can get too hot, especially during track use which can trigger limp mode.
The Focus RS 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 |
|---|---|---|---|---|
| 2017-2021 | BMW | 230i | Base | L4.1998cc |
| 2017-2021 | BMW | 230i | xDrive Base | L4.1998cc |
| 2017-2018 | BMW | 330i | GT xDrive Base | L4.1998cc |
| 2017-2018 | BMW | 330i | xDrive Base | L4.1998cc |
| 2017-2018 | BMW | 330i | Base | L4.1998cc |
| 2016-2018 | BMW | 340i | Base | L6.2998cc |
| 2016-2018 | BMW | 340i | xDrive Base | L6.2998cc |
| 2017-2019 | BMW | 340i | GT xDrive Base | L6.2998cc |
| 2017-2020 | BMW | 430i | Gran Coupe Base | L4.1998cc |
| 2017-2020 | BMW | 430i | Base | L4.1998cc |
| 2017-2020 | BMW | 430i | xDrive Base | L4.1998cc |
| 2017-2020 | BMW | 430i | xDrive Gran Coupe Base | L4.1998cc |
| 2017-2020 | BMW | 440i | Base | L6.2998cc |
| 2017-2020 | BMW | 440i | Gran Coupe Base | L6.2998cc |
| 2017-2020 | BMW | 440i | xDrive Base | L6.2998cc |
| 2017-2020 | BMW | 440i | xDrive Gran Coupe Base | L6.2998cc |
| 2017-2021 | BMW | M240i | Base | L6.2998cc |
| 2017-2021 | BMW | M240i | xDrive Base | L6.2998cc |