You need 4'' in walk on the ice, 6'' to drive a snowmobile, about 8-12 for a small car, and 12-15 for a truck :-)
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2010 370Z Touring MT | Stillen | Motordyne | Momentum| Z1 | Fast Intentions | Advant Garde | RE11 | Swift | SPC | Quaife | Whiteline | Evo R | 322RWHP 259ft-lb Mustang
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