Ben's Z Posted February 4, 2013 Share Posted February 4, 2013 I really just want to run my stock manual fan and don't want the IC piping running underneath the car. I will not cut holes in the body. What pipe diameter would I need to be able to run my pipe between the fron the engine and radiator? Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted February 4, 2013 Share Posted February 4, 2013 2" Quote Link to comment Share on other sites More sharing options...
letitsnow Posted February 4, 2013 Share Posted February 4, 2013 I fit 2.25" in mine, should be fine up to 400ish hp. Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 5, 2013 Share Posted February 5, 2013 No bigger than go through the existing holes in the radiator core support used for fresh air ventilation of the footwell... Quote Link to comment Share on other sites More sharing options...
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