Get rid of all the in between stuff, and swap in some GM LQ9 coils...
the stock vvti coils aren't very good at all it turns out, anything over 22 psi and they break up regardless... the DLI might help a little, but replacing them with LQ9 coils is really the best way...
as far as what changed, no idea... not even sure which AEM ignition setup you are talking about
-cody: maintenance forum moderator
2001 Lexus IS300 - 650whp/610wtq (Virtual Dyno)PTE 6765/AEM Infinity - Auburn Sky Pearl (1 of 1348)
2007 Lexus GS450h
2010 Lexus RX350
1998 Lexus GS300 - 1jz-GTE swap
1999 Isuzu VehiCross 285/75-16 Destination MT's - Astral Silver Metallic (1 of 1021) (for sale)