B buickpower polytetrafluoroethylene Joined Jun 27, 2003 Sep 7, 2005 #1 Can someone please tell me? I've never measured one or heard it mentioned. thanks.
G GNguy U aint that big Joined Feb 25, 2005 Sep 7, 2005 #2 I belive its 2 1/2......but then I also heard its 2 3/4, But I think its 2 1/2.
2 2QUIK6 Turbo Milk Jug displacmnt Joined May 28, 2001 Sep 7, 2005 #3 Yes, stock is 2.5". I just purchased one of MArk's 3" uppipes to replace mine.
