Pre cat flexis / 2 into 1 exhaust pipes

[alackofspeed]

Hi does anyone know, or is able to measure, the OD of the 2 exhaust pipes immediately post pre-cats and post flexis?

Help would be appreciated - I'm trying to order exhaust parts, but my car is 15 miles away.

[ColleyV8]

1.65" or 42mm if it is the 2 smaller pipes before it goes into 1 that the flexis join to

[alackofspeed]

Many thanks, that's precisely the information I needed.