if i was going to go to the dealership for a regualr maitenence or whatever, would it void my warranty if i had a injen cai for my '03 celica? cuz i heard that the injen cai for '03's aren't CARB approved or something.
CARB doesn't have anything to do with warranty. If something does go wrong with your car and it is somewhat realated to the intake, they will probably say it was the intake unless you remove it every time you take it in and they don't know about it.
with that in mind are some dealerships more approachable than others? i had this exact same question as my car is still under warranty and wanted to do a injen cai install, but didnt want to mess up the warranty.