DISCLAIMER: This is not an official application, nor it is a replacement for reading the SCCA Solo Handbook. It is intended as a guide to let you see what modifications you have done may push you into another class. It is almost entirely based off of Ben Clement's Modification Guide at AZSolo.com.
Suspension
              
Shocks
Springs
Front sway bar
Rear sway bar
Strut tower bars
Tie bars (2-point only)
Suspension bushings
Crash bolts
Camber plates
Traction Bars/Torque Arms
Panhard bar
Camber Kits
Subframe connectors
Subframe mount bushings