BLOX Racing aluminum radiators are a perfect upgrade for any high performance or racing application. All radiators are 100% brazed aircraft quality aluminum and feature lightweight 2-row cores. The TIG-welded radiators have billet filler necks and come equipped with a drain plug and 1.1 Bar cap.Whether you drive your car on the streets or at the race track, BLOX Racing aluminum radiators provide the additional cooling efficiency and performance to keep your vehicle from overheating.