Originally Posted by Roman@ESS
All of the kits are upgradeable. Everyone is different on how much power they feel is enough, some upgrade over time and other stay with what they originally decided on. I have had every version of kit in my personal M3 and they are all great in their own way. Im currently running the VT1-535 and find that the car has great balance. The high HP VT2 kits can take the car to crazy fast if that is what you desire
nice to hear that you're running a non-intercooled kit in AZ as it must be hot as shit. I am contemplating pulling the trigger on the 535 but was worried about the SF heat.