S = Chassis
R = Fastback
P = SR20DET
K = SuperHICAS
H = KA24E
M = KA24DE
C = SuperHICAS (S14)

ejemplos:
 S13 = 88.5-90 Silvia, CA18DE(T)
RS13 = 88.5-90 180SX, CA18DE(T)
PS13 = 90.5-94 Silvia, SR20DET
RPS13 = 90.5-98 180SX, SR20DET
KPS13 = 90.5-94 Silvia, SR20DET, SuperHICAS
KRPS13 = 90.5-98 180SX, SR20DET, SuperHICAS
HS13 = 89-90 240SX Coupe, KA24E
RHS13 = 89-90 240SX Hatch, KA24E
MS13 = 91-94 240SX Coupe, KA24DE
RMS13 = 91-94 240SX Hatch, KA24DE
KMS13 = 91-94 240SX Coupe, KA24DE, SuperHICAS (exclusivo en canada)
KRMS13 = 91-94 240SX Hatch, KA24DE, SuperHICAS
S14 = 94.5-98 Silvia/240SX con SR20DE(T) o KA24DE. (sin distincion entre jdm o usdm)
CS14 - 94.5-98 Silvia, SuperHICAS

saludos y espero halla sido de su agrado



un saludo