Bolt ons and a proper tune will change the car drastically. Granted it's not as drastic as getting a tune w/boltons on a boosted car but it's still substantial.
My personal NA Z went from 274 whp stock to 329 WHP with just ART pipes, tomei, and E85.
I did a few that gained 60whp over stock with intakes, test pipes, and a full exhaust on e85.
93 octane is only 5-8 whp less so you can still gain 60whp over stock with headers, test pipes, full catback and exhaust on 93 octane.
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Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP)
Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58)
BTWTuning
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