I emailed my local track Englishtown NJ...To find out what saftey stuff need to be done to run a convertible...Well i knew a roll bar was need but not at this 1/4 time they told me 13.5 needs a 6 point roll cage and Harness...come on how can that be...That isnt that fast at all....My SRT when stock ran 12.9 come on is this series??? Anyone run an E-town without a rollbar and went faster then 13.9?