This is what i did on mi 99 RS by stage:

stage 1:

-HKS super mega flow AIR FILTER
-Unortodox Racing pulley KIT

stage 2:

-Lachute 2.5" Cat/Back

stage 3:

-Cobb tuning streat cams
-Apex'i S-AFC

stage 4:

-Turbonetics (t3t4 garette) ballbearing turbo
-GO FAST BITS BOV
-ASR 2,25 up pipe
-ASR 2,25 down pipe
-Costum top mont IC
-Turbonetics Wastgate
-Cartech fuel pressure riser
--RX-7 fuel pump
-Split Second Timing controler

stage 5:

-hybrid 3"/2,5" cat/back
-420cc WRX injector
-Turbonetics MBC

What do you think should be mi next stage??? I dont want to go with a stand alone ECU because i want one of the fastest 2.5 RS-T with a stock ECU. What do you think i need???

The only mods that you don't have are exhaust manifold, fuel pump, fmic, and stand alone ecu.

So basicly get the twe header, 255lbs walbro, and custom FMIC.

But i'd highly recomend the stand alone ECU.

OK, i just buy a Spearco FMIC with a costum piping.

I allready have a good fuel pump, a RX-7 one.

I still don't won to go with a stand alone ECU.

What next?????????????????????

I guess you could always port the block, throttle body, and intake manifold.

Not too much else though.

T3/T3?
Maybe you'd get better numbers with a T3/T4 or a VF22 (but you'd need different flanges)

What are you trying to do? If it was me, stay TMIC... though if you want more power as opposed to a nice auto-x driver with quicker cooling... then go FM. You could balance engine... do you have headers or did I miss that. MMM... bigger turbo. do you just want more power top end, low end, quicker spool up, nice overall package??? What has been done away from the engine? Trans, lightweight flywheel and clutch set up. You could get the light weight front and rear bumper supports to lighten up the car a little. How much do you want to spend, or this just kind of a ask, then figure out what you can actually do thread? peace

I have lightweight flywheel and a Exedy racing clutch.

My engine is stock excep for the Cobb cams.

All i want it's lower times on the drag strip!!!

I have arond 3000$ to 5000$ in CND cash to spend on it.

lighweight bumper beams will drop you close to 80lbs

Nitrous.

Otherwise just run more boost! Once you find you can't (or your engine blows) then get a programmable EMS and be "HELLA" fast!

:D