Ok here it is then,
If you want to crack 11s, here is a pretty sure fire recipe:
Turbos: several different choices. I will break them down in two categorys
Category1- 13Gs, GT347s, DR500s
This is the first tier of turbos. One step up from stock. More efficient and hold higher boost than stockers. You can run 11s on these but not as easily as you can run 11s on category2 turbos...
Category2- 15Gs, GT357s, DR650s
Second tier of turbos. Much easier to run 11s and have the potential to run 10s with lots of other mods backing them up. More efficient and will hold higher boost than the first tier.
Basically if you are a good driver and have decent support mods you could pull 11s with first tier, but it would be safer to go with second tier. Also you should decide whether you want low, mid, or high 11s as there is a big difference.
Fuel: At least 550cc injectors. Not sure if it can be done with 450s or not, but I guess it is possible. In addition you should drop in a fuel pump to feed the injectors. Several options for fuel pumps but these are generally pretty linear, the more you pay, the more you get unless you are paying for a name, as is the case with the HKS pump...
Electronics: Boost controller. Doesn't have to be electronic, but that is my preference. Stay away from the Apex AVCR as it will occasionally just decide to shit the bed and you will be doing yet another rebuild. Not guaranteed, but its better to be safe than sorry. Fuel controller. Several options here too. If you don't mind some timing retard go for the Apex SAFC or the HKS AFR. If timing retard is an issue or if you ever plan on running bigger than 660 injectorsa get the ARCII or the HKS VPC (you still have to get the SAFC or AFR with the VPC for fine tuning). If you want maximum adjustability and limitless potential get the AEM EMS and RTFM or buy a runer.
Other stuff: Everything else...
Exhaust- downpipe and catback. Gut the precats or get yourself some eliminators.
Free mods- free weight reduction, block off the EGR and remove all of the emissions crap and the throttle body coolant.
Ignition- upgrade this to use a bigger spark plug gap and prevent spark blow out.
Underdrive pulley- liberate your hard earned horsepower.
Driving lessons- you will never pull 11s if you can't get off the line and down the track.
There are other ways to do it as well, but this one is pretty sure fire although I offer no guarantee

I suggest if you want more input you do a search as this topic is posted on average of 5 times per week.
devilmanVISA