This CSF all-aluminum radiator is a top choice for Subaru owners. It fits 2008 - 2021 Subaru WRX and STI models with manual transmission, as well as 2005 - 2009 Subaru Legacy, 2005 - 2010 Subaru Outback, 2013 - 2017 Subaru Crosstrek, 2013 - 2015 Subaru XV Crosstrek, and 2009 - 2013 Subaru Forester with manual transmission. Trusted by race teams worldwide, it's a great upgrade from the OEM plastic/aluminum radiator. It features a black finish for a high - end stealth look. The 1 - row, 31mm radiator uses CSF’s exclusive B - Tube technology and has ultra - efficient 6.5mm tall fins with a multi - louvered design for maximum surface area contact. It's 100% all - aluminum TIG - welded with CNC machined mounting brackets. The innovative “Multi - Fit” combo pipe and plug design is included. It's a true “drop - in fit” that requires no modifications to install. Each radiator is individually leak and pressure tested. It comes with a 2 - year limited manufacturer warranty. All CSF high - performance radiators go through a rigorous testing process during development, including burst pressure, thermal cycle, vibration, and salt spray testing.






Using your CSF high - performance radiator is easy. First, make sure your vehicle is turned off and has cooled down. Then, simply install the radiator as a drop - in replacement, no modifications needed. Since it's designed for manual transmission vehicles only, don't try to use it on automatic transmission ones. When it comes to maintenance, regularly check for any signs of leaks. You can visually inspect the radiator and its connections. Also, keep an eye on your vehicle's temperature gauge. If it starts to run hot, it could be a sign that the radiator needs attention. Every once in a while, clean the radiator fins gently to remove any debris or dirt that might be blocking the airflow. Remember, this radiator has a 2 - year limited manufacturer warranty, so if you encounter any issues within this period, reach out to the manufacturer for assistance.