Originally Posted by Savagecowboy_69
is the series 2 an OBD2 or an OBD1 set up
If you want a manual transmission, your options are few. W-body guys have successfully swapped in the Getrag 282 and 284. The 284 is not recommended due to the cost ($500+ for a clutch), and the fact that its impossible to find a rebuild kit for one, and when you do find it, it sells for its weight in gold. The 282 can be pulled from a 1988-1990 Grand Prix or Cutlass Supreme. If you can fabricate a mount, you can also use one from a J-body.
The fiero guys suggested I look into the F23. Apparently it holds a lot of power. Don't know anything about it.
The other option is the F40, which was optional for the G6'*. The advantage is that they're stupid cheap, to the tune of $250-$300 BRAND NEW for the 2006/2007 years. Sourcing the rest of the parts to make it work might be a different challenge, and you need to be able to fabricate to get it to work right. It has been done in w-bodies, though I haven't seen one in a Bonneville.
None of these are options I'd recommend due to the fabrication involved.
2005 Pontiac Bonneville GXP - For Sale ----- 1995 Buick Regal GS(X) - L67 madness
2000 Buick Regal GSE - Stock...for now
----- 1987 Jaguar XJ-* V12 - 12>8