New heavy-duty aluminum radiator for the Opel GT. Recommended for Summer driving and for performance-built Opel GTs. Installs in original location, and outperforms original-style radiators. Works with original mounts, and adds a convenient drain plug! Note: Designed for manual transmission Opel GT's -- Automatic transmission GT owners that want to benefit from this radiator can add an external transmission cooler (sold by Amazon, Jegs, Summit, or local auto & RV parts stores). Requires a 70% coolant/water mix for operation.