Koyorad's new AE86 48mm “HH” Series radiator core features an ultra high fin density to maximize heat transfer.
Koyo designs and manufactures each radiator with precision; therefore each one is a direct-fit performance replacement for the stock OE plastic/aluminum radiator for a quick and simple installation with no modifications.
Koyo has also integrated a 1/8” NPT female accessory fitting (supplied with a threaded plug) to accept temperature sensors typically included with aftermarket temperature gauges. 
DETAILS:
* Koyorad “HH” Series 48mm Hyper Core
* OE Specific mounting and direct fit
* Nocolok-R Brazing
* Precise Tube and Fin alignment
* Billet aluminum filler neck
* 1/8” NPT female accessory fitting