I have a 98 dodge caravan with a 3.0 and stock exhaust. What is the diamater for the piping? is it 2.25? and if so Im needing a coupler so I would look for a 2.25" inside diamater coupler? thanks

Until someone pipies in - I found a kit (1998 Dodge Caravan BORLA UNIVERSAL HOT ROD KIT) that shows the main pipe diameter as 2.5 in. You got to figure they would be using the same dimension from the main. However, it wouldn't be the first time I was wrong!

Wrap a tape measure around the pipe and read the circumfrence then divide it by 3.1416.

My 2002 has a 2" pipe