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Thread: naca duct

  1. 18-04-2011, 19:34 #1
    Car_nut
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    naca duct

    I want to fit on to my headlight and want to know which one is best to get,I dont phyically have the car at the moment its away gettin a bit of welding done.Which size do I get as well
    http://www.merlinmotorsport.co.uk/pr...edium=Shopping
    or
    http://www.merlinmotorsport.co.uk/pr...edium=Shopping
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  2. 19-04-2011, 07:30 #2
    croustibat
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    You dont need one. There is no gain to install one, except maybe one or two horsepower until you reach 5mph, which wont make a difference. A friend measured air temps with different setups, mainly to show that a cone filter in the engine bay of an S13 does not suffer from heat soak, and how the oem WMIC is crap. WITHOUT any vent, air in the filter was at ambiant temp as soon as 5mph was reached.

    Get one if you want the look only, dont expect any increase in performance.
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