Koyo Aluminum Filler Neck Honda Civic 2006-2011

Description

Built with a robust 48mm core, it is engineered for the serious performance tuner. Increased capacity means better cooling reserve when you need it. Intended for both circuit and daily use, you may double your coolant capacity and see up to 35% increased performance over your stock radiator. Unless noted otherwise, all Koyorad All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.
Features:
Direct replacement for the plastic OEM unit uses the OEM hose and clamps
Billet aluminum neck eliminates steam erosion and cracking common with plastic filler necks
Note:
OEM cap will not fit. Must use Koyorad SK-C13 type cap or deep plunger equivalent type cap.

Fits SI, EX, LX, and DX trims (includes all transmissions)
Fitment:
Honda Civic 1.8L | 2.0L I4 (MT) 2006-2011