Long shot I know but is anyone on here familiar with e92 or even e90 diff ratios?

Iv a manual 325i that I like but it is totally smothered by incredibly long gearing, Iv looked around a bit and can only find US-based info on ratios for the different models. If anyone could point me in the direction of a list of ratios for each model it'd be a massive help.

Also I think I'm right in saying only the M3 comes with an lsd and at that it's a funky electro-LSD. I thiiink this means my only real option is an aftermarket LSD, has anyone any experience woth any of these fitted to modern beemers?

Iv used every option under the sun on jap turbos but modern bmw diffs are new to me!

Thanks in advance.