While the OEM Fans are functional, they are still a design dating back to the 1980's and leave plenty of room for improvement. Electric fan technology has progressed a lot over the years and newer fans can efficiently move more air with a lower drawn on your car's electrical system. The laser cut shroud ensures the most efficient function of the fans drawing air through the radiator. The low profile dual 9-inch SPAL fans move 1180 CFM of air. The Fan & Shroud kit is designed to fit the CSF #7088 Radiator but will also fit OEM 944 NA Radiators. These fans have standard SPAL connectors but can be rewired for OEM connectors during installation. Optional all-aluminum fan shroud with dual 9" high-performance SPAL Fans for the CSF Porsche 944 High-Performance All-Aluminum Radiator (CSF #7088) The CSF #8180 Cooling product is designed to be a "Drop-In Fit" applications. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.