t28 inlet pipe diameter

ive just stripped my old daily saab 900 turbo, and i had some fancy inlet pipes on it, 60mm in diameter, does anyone know the diameter of the inlet pipe thats bolted to the stock t28? i need to buy a reducer today its less than 60mm, but im not sure exactly what

If nobody else gets back to you I will measure this tomorrow for you.

Edit : I see you need it today, sorry!

done it, i couldnt find my tape measure, it was a 51mm pipe i needed, thanks anyway mate