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      11-17-2009, 01:41 PM   #66
GeorgeSmooth's Avatar

Drives: 2008 E90 335i AT
Join Date: Feb 2008
Location: South Africa

iTrader: (0)

Originally Posted by marconi118 View Post
where to find the OEM 3.15 one at a reasonable price?
as far as I understood the single parts aren't available by BMW, only the complete diff. Unfortunatelly I found only a normal 3.85 M3 6MT diff at the scrap complete with all the subframe, harms, brakes and half shafts..
I know two people that have installed the Dinan 3.62 and have the 3.15 sitting. Their prices are unreasonable at the moment but I am sure soon the used market will have plenty for cheap.

These are the ratios currently available from diffs online:
2.65 _
2.81 _
2.93 _
3.15 _
3.23 _
3.45 _
3.62 _
3.85 _
3.91 _
4.10 _
4.45 _
4.75 _

I think its essential that everyone researches M3 diffs as I know of a few people that have had to swop theirs out under warranty. So it might sound exciting and all but is the diff superior to a OEM 335 with a LSD.
08 E90 335i AT RB Turbos -NX Wet Kit - Chiplogic Flash or Procede V5- M3 Diff - AE Exhaust- Forge Dv's - Helix Intercooler - AR DP's - P3 Boost Gauge - Vishnu Meth- Stett Chargepipe and CAI
09 C63