One thing for sure is Jim's fuel kit.
Jim's Fuel Kit upgrade tutorial
Contact:
Jim 503-236-2871
For more info:
Fuel Upgrade Kit installed
Other options that you may want are the Walbro fuel pump (I've got the 190lph) ,
Supra injectors ,
Supra TT MAF kit [with this you'll have to use a piggyback fuel controller - like the Apex S-AFCII or Split Second FTC (fuel timing calibrator)] If you install those along w/the fuel kit you'll see some amazing gains.

- Just be aware you'll need to upgrade your stock clutch (if manual), because it can't handle the new power!
I just installed those, but I found out we'll need an OBDII scanner for the lo throttle tuning of the fuel controllers. If you any questions on that ask them here at
S-AFC tuning. This will be specific to the S-AFCII, but I'm sure any questions could be answered there about tuning.
This is great info you should read wrote by Gadget of
Underdog Racing Development. Please read.
URD tuning guide.
Hope this helps


Lexus lip kit, LED tails, F-Sport Intake, HKS hi-power exhaust, TEIN S-tech springs