325i downpipe bore size?

Post Sat Jun 01, 2013 10:58 am

Hi all,

Can anyone confirm the internal diameter size for the 325i's exhaust down pipes, the section i have has internal bore sizes of 37.5mm

TIA

Chris

Post Sat Jun 01, 2013 11:18 am

Unless someone gets there first, I can check tomorrow. I've got late M20 downpipes in my shed somewhere.

Post Sat Jun 01, 2013 5:06 pm

jmc330i wrote:Unless someone gets there first, I can check tomorrow. I've got late M20 downpipes in my shed somewhere.

Cheers dude, turns out the downpipes on the car are larger bore so suspect that the downpipes are 320i spec...

Post Sat Jun 01, 2013 9:20 pm

Only got rough measurement as my calipers have gone MIA...
At the manifold flange, they are roughly 40mm (maybe 39.5)

These are late 325i downpipes.

HTH