There are really not alot of differences. 2010s if I'm correct all get the oil cooler and minor changes like new side mirrors and 09, 10s get the optional M-Sport package. All tuners as far as I have read including DME re-flash companies (i.e. GIAC) are compatible with all years.
'13 C63 (LSD, DA, LP) - 421whp (91oct tune only)
'09 E92 DCT M3 (GIAC tuned) - Sold
'13 S4 (GIAC tuned)
'12 E70 X5 35d (Wife's)
'12 E90 335i (Sold) - '10 E92 335i - GIAC Tuned (Sold) - etc...