$400 to spend to make it better at rally? Tires. if you can get a hold of some stock 15's throw some rally tires on them. or throw some snowtires onto any size rim you have. tires help a lot.
oh and after market end links cause the stock ones break. mine did.
2009 FocusFest 2nd Place Slalom Finish
2009 NRSCCA ST Class Champion and Rookie of the Year!
2011 & 2012 Lincoln ProSolo Bonus Challenge Winner