So iam not sure which is better, warmer or colder days for boost, but when i twas warm out i could hit around 100kpa, now thats under -10 i only hit around 90kpa, is warmer air better?

Also i only have 1200kms on it, will boost increase as it gets broken in?

 

don't worry about it. its been about -15 to -20C in lethbridge for the last 2 weeks and with the freezing temperatures the ecu may be limiting boost. with the cold air charge you will be producing more boost then if you would if its warm to a certain extent. i know my car produces about 75kpa and with the colder temperatures my boost gauge is only showing about 70kpa.

my car has 36000 km and is 100% stock right now (stage II coming in the summer)