The '75-77 turbos had SC calipers (smaller thinner rotors & smaller pads) vs '78 on with 930 calipers & rotors. The difference is going to be shorter stopping distance with the 930 calipers on the street and track.
Why would you run Hoosier R6's on the street?
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Harold
'79 930/DP935
'68 VW 3.3 Turbo Crewcab
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