Mustangless Member Jun 27, 2003 903 1 18 home May 14, 2006 #1 May 14, 2006 #1 What size are the stock header primary tubes. Are the 1.5"??
Grn92LX Fidanza Man! Founding Member Jan 14, 2001 6,819 64 129 New York May 14, 2006 #2 May 14, 2006 #2 1.5". They're fine for a bolt on car.