I would just try full bolt on with a 100 shot.
PR CAI, HS3 header, JWT cams and ECU, clutch, maybe flywheel, Courtesy exhaust, slicks, and the 100 shot (JWT system with injectors and ECU add on). Seems if just the bolt ons of
PR CAI< HS3, JWT cams and ECU can get Jay Hass (I think) 13.9 on RSA's, slicks and a clutch _might_ get you there, but the 100 shot with that should bring you well into the 12's.
What's that cost? Let's see, to get a SR20 in the 12's it costs
$200 -
PR CAI
$300 -HS3 header (think that's the right price)
$500 -JWT cams
$500 -JWT ECU
$350 -slicks cheapo steel 14" base Sentra wheels -guessing high
$300 -clutch (is that correct price?)
$600 -JWT NOS kit with ECU upgrade (dunno if that's just the kit or includes the NOS ECU module)
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$2750? To get a compact 4 banger sedan in the 12's? What is this world coming to?