Correct exhaust diameter/config

[babaracus]

As you know I have the 1.2 16v fitted in my Sei Sporting 01.

I am hopefully getting a custom exhaust with sports cat made up between current manifold and midpipe.

What would be the best diameter to go for at this part of the exhaust system, would I be right in using the supersprint diameter for the pipe?

If so does anyone know what diameter the 16v uses in the supersprint front exhaust section? As a reference.

Many Thanks

[lowtechguy]

Who is making the exhaust for you? I would of thought this would have to be tuned to your car, the puntos are abit longer so can afford a wider diameter, so yours being shorter this must be narrower to compensate.

Its proberbly best left to someone who can do the calculations for you tbh.