Spring rates for the swifts are much stiffer than stock. I would recommend doing both if you're going to do it but that's just my anecdotal advice.
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35% Hooper Optik | Takeda Attack CAI | F.I. HFC | Hotchkis Sway Bar | Stillen 24row | OS Giken Super Lock LSD | TK Shift Knob | EVO-R Carbon Diffuser
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