hi, I have a 2015 Toyota GT86 automatic transmission
and I am planning to buy from
www.carid.com a GReddy tuner turbo kit
but I don't know, shall I buy the Kit with T518Z or the kit with T620Z
coz I want my car for the daily use
also, do I have to buy a tuner software like EcuTek Pro or is there any cheaper one??
thanks