some people are not technically inclined enough for wiring/engine swaps, and this is by far cheaper than having SOMEONE ELSE swap a motor in your fiero, this also requires NO wiring changes, bolts right in, and gives a marginal improvement in mileage (for those who dont plant their foot heavier than before)
when i first got my trueleo intake there was a HUGE improvement, since then, ive switched the stock chip back in, and kinda screwed with timing, now it needs tuned again, my biggest issue is the chip i got didnt work right, not sure if it was just my car or what, but at 2500 my car would just start bucking violently, swapped back to the stock chip, and problems gone, however im sure 10-15 Wheel horsepower is gone too, cause the chip made a large improvement in my dyno sheet, i guess getting my air/fuel ratio away from 9:1-11:1 makes a large difference

at wide open throttle with the trueleo chip my car was very nice.
the trueleo intake/exhaust package is basically for those who can do bolt on changes but dont want to change the factory wiring.
i agree that it should probably be done while the engine is out getting refreshed/stroked though.
matthew