964 / 993 Carbon Fibre Heater Fan Bypass

99321194100 1616000200  964167003  This a replica of the Porsche Germany RS lightweight factory heat duct that was used on all 3.6 liter special RS lightweight rare cars. Saves 8 to 9lbs about 4Kg from the rear of all 964's and 993's. Will not work on 965 turbo cars. Replaces blower motor assembly and ductwork and still allows plenty of heat just like the factory RS part. All late model 993's 1996-98 require the non vario ram 993 early type fan shroud, our item # 5221. Top tip to get the fan shroud to fit over the lip on the bypass pipe is to heat up the rubber on the shroud with a hot air gun!