PRODUCT DETAILS
Full-Race Radiator Upgrade for 2017–2021 Honda Civic Type R FK8
If you actually drive your FK8 the way Honda dared you to, you already know Civic Type R heat management gets real, fast. The Full Race radiator FK8 upgrade, developed with CSF, gives your K20C1 radiator upgrade plan the extra headroom you want for hard street pulls, track days, and time attack. It’s an all-aluminum Civic radiator built for repeat abuse, not one hero lap.
The FK8’s integrated exhaust manifold head dumps a ton of heat into the cooling system. The stock Civic Type R radiator works fine cruising around, but it becomes the bottleneck when boost stays up and sessions get long. This Civic FK8 aluminum radiator uses a CSF B-tube radiator core and TIG welded end tanks, and it bumps surface area by 60 percent and cooling capacity by 25 percent versus stock. On track, that means your temps climb slower, recover quicker in clean air, and stay more consistent when you’re pushing.
Fitment stays OEM-friendly. This Civic Type R radiator upgrade keeps the factory mounting points, stock fan, and AC condenser mounts, so you aren’t fighting brackets or weird clearance issues. It installs like a factory part, it just handles heat like an FK8 track radiator should.
If your 2020 Civic Type R radiator temps creep after a few laps, you see heat soak on long pulls, or you want a Honda FK8 cooling upgrade before turning the boost knob, this is one of those reliability mods you’ll appreciate every single session. We run these exact parts on our own cars because nothing ruins a day faster than watching coolant temps climb while your buddies keep lapping.
Key Features
- Direct-fit FK8 performance radiator for 2017–2021 Civic Type R
- Developed with CSF, high-efficiency CSF B-tube radiator core
- 60% more cooling surface area than the factory Civic Type R radiator
- 25% more cooling capacity for better Civic Type R heat management
- All-aluminum Civic radiator construction with TIG welded end tanks
- Retains OEM mounting points, fittings, and connections
- Reuses the stock cooling fan and factory AC condenser mounts
Fitment
- 2017-2021 Honda Civic Type R
- 2021 Honda Civic Type R Limited Edition
Track Use Note: If you’re serious about time attack, trim the plastic bumper to feed the radiator more air. More airflow equals more cooling, and it’s one of those “annoying but worth it” track prep steps.
If you want an FK8 Civic cooling solution that holds up when you drive the car hard, the Civic FK8 CSF radiator package from Full-Race gives you the cooling margin the factory setup runs out of.