For all 10.00 to 13.99 closed-bodied cars, either an open-face or a
full-face Snell M2000, M2005, M2010, K2005, SA2000, SA2005,
SA2010, SFI 31.1A, 31.1/2005, 31.2A, 41.1A, 41.1/2005, or 41.2A
helmet with or without a shield is mandatory. For all 9.99 and quicker closed-bodied cars, a full-face Snell M2000,
M2005, M2010, K2005, SA2000, SA2005, SA2010, SFI 31.2A, or
41.2A helmet mandatory; shield permitted (goggles prohibited).10.00 (*6.40) to 13.99 (*8.59); all E.T. non-OEM supercharged,
non-OEM turbocharged, or nitrous-equipped cars with an OEM or
.024-inch steel firewall: Jacket meeting SFI Spec 3.2A/1 mandatory.
10.00 (*6.40) to 13.99 (*8.59); all E.T. supercharged,
turbocharged, or nitrous-equipped cars without a full OEM or
.024-inch steel firewall: Jacket meeting SFI Spec 3.2A/5 and
gloves meeting SFI Spec 3.3/1 mandatory.9.99 (*6.39) to 7.50 (*4.50) closed-bodied vehicles without an
OEM or full .024-inch steel firewall with nitrous oxide,
supercharger, or turbocharger(s): Jacket and pants meeting SFI
Spec 3.2A/15, gloves meeting SFI Spec 3.3/5, and shoes or boots
meeting SFI Spec 3.3/5 mandatory.
10.00 (*6.40) to 11.49 (*7.35); all E.T. naturally aspirated, OEM
supercharged, or OEM turbocharged with a full OEM or .024-
inch steel firewall: Jacket meeting SFI Spec 3.2A/1 mandatory.
9.99 (*6.39) to 7.50 (*4.50 ) or any vehicle exceeding 135 mph:
Jacket and pants meeting SFI Spec 3.2A/5 and gloves meeting SFI
Spec 3.3/1 mandatory, except as noted above.