Feb 1, 2008 #1 funnyman06 Full Access Member Joined Oct 12, 2007 Posts 1,130 Reaction score 2 Location Coventry, RI On a 85 6.9 what is the OD on the Y pipe as it exits? im about to redo the exhaust and am trying to get my sizing all set up. Thx
On a 85 6.9 what is the OD on the Y pipe as it exits? im about to redo the exhaust and am trying to get my sizing all set up. Thx
Feb 1, 2008 #2 adam g Full Access Member Joined Jun 2, 2007 Posts 249 Reaction score 10 Location Emporia Ks I believe the pipes before the y are 2 1/4 and after the y 2 3/4 or 2 1/2 not sure thought.