CSF Aluminum Radiator Filler Neck

Replace the weak plastic auxiliary filler neck of your FRS/BRZ/86 with an all-aluminum 100% TIG-welded and mirror polished upgraded version from CSF. Complete with a 1.4bar high-pressure cap with a high-quality "mini style" radiator cap, embossed with the CSF logo. This cap style is most commonly used with high-performance aftermarket caps if you wish to replace the CSF cap with another brand. Easy drop-in replacement with no modifications - can be installed in less than 5 minutes.

• All-aluminum 100% TIG-welded
• Mirror polished
• 1.4bar high-pressure cap
• Integrated 1/8 NPT sensor port & preinstalled optional plug for aftermarket sensors