All radiators are fully polished to a mirror finish. Each feature the following: - Provides 20% to 30% more cooling than standard radiators - Handles high revving, high performance motors - Perfect for Turbocharged, Supercharged & Nitrous Oxide equipped engines - Made from aircraft quality aluminum and Heli-arc welded, cores are NOCOLOK-brazed (no epoxy) - Koyo is on the cutting edge of technology and design with Japan's largest automobile manufacture - Custom built OEM fit - All radiator cores and tanks are specifically designed and built for each application. No universal fit parts are used. This ensures proper fit, just like your original equipment! Koyo builds radiators to fit today's most popular import performance cars. - Designed for five speed models only.