Originally posted by BANDIT:
What dia would you want the "y" pipe to be?




The Y pipe would have to exit at 2.5" dia, to connect to a 2.5" IN-OUT Hi Flow Cat,
but off the headers, I don't think it should be bigger than 2.125 - 2.25".
Any bigger and you may lose necessary backpressure.

The trick is to get the "Y" just right, so that the two pipes
aren't CRUSHED together like FORD's Y pipe is.


Pete... 2004 Mercury Marauder 300A Black Clearcoat/Dark Charcoal LEATHER DOB 10/31/2003 DOP 1/2/2004 www.mercurymarauder.net