I have an RPS stage 3 in my supra. Couldn't be happier with it, and my car isn't stock by a long shot. I believe I paid in the neighborhood of $550 to $600 for it. Plus, I didn't notice any change in pedal feel.
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87 Turbo, 5-speed Supra Hard Top
GM mas airflow sensor translator, 550cc RC injectors. Blitz NUR spec exhaust, Custom 3" down pipe w/ QTP E cut out, Short throw shifter. Spearco FMIC, custom upper and lower charge pipe, and so much more 
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