Microtech Lt10.. with x4 and multicoils...
Think all up it will be $1200 for ECU, loom, X4 box, and 4 coils...
EMS, Haltech, wolf ect are all crap....
This isn't my bias either...
I have a freind who owns his owns performance tunning shop and he recommends Microtech. There simple cheap and effective... Anopther plus side is you can take your car to almost anyshop in australia and get it tunned...
Don't get a second hand Lt8 as microtech wil no longer reconfigure these... So unless you get one thats allready on a 4a with all the stuff you need, DON'T BUY IT..
Sorry... this doesn't really help your thriffy buying...
Give it a day and i'm sure someone will suggest something different...
Best bet is talk to GOOD tuners....
Easiest way to find said gone tuners... get on silvia forum or skylines australia and ask...
Please note... just casue there a big name shop DOESN'T mean there good...
I have been witness to 2 cars in the last week at my freinds shop that just came from 2 different well known shops. boths cars have had BIG dollars spent on them at these shops... eg over 20k and the owners were frustrated with the cars not running right and not gettin the results they were after....
Quick inspection of both cars revieled that there brand new awsome engines were infact. completely stuffed and needed rebuilding..
I have more storries but I'll save that for another time....
Spose you could always get a Motec... it'll do pretty much do anthing but your washing and house work...
JUST RESEARCH brotha...