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TWI Systems is the world leader in aftermarket radiators and heater cores with patented technology. In addition to radiators and heater cores, our Nuevo Laredo facility produces oil coolers, radiators, and heater cores for OE and aftermarket customers. With our vast range of current and past model automotive applications TWI Systems is the innovation and quality leader on the market. Bulk radiators and heater cores are available both to OE and aftermarket customers.