C4 would get you more consistent times, but yeah for your power level and needs I'd go for the TKO 2 too. Can you post up the specs on it?
__________________
"There's more flawless engineering in a Camry than all the berlinettas Enzo ever conjured while lying next to mistresses." - John Phillips/Car and Driver 
The swapped hatch hotness
Slow Five-Oh Rustang