in respect to TRD parts it is toyota so it is covered by warranty - not effecting you new car warranty. the parts are covered for 1 year and if installed before delievery for the life of the cars warranty. The TRD parts most made for our cars are designed and developed in USA, both myself and mikesportivo03 have discussed this with toyota australia at length, i discussed it when the rep from customer information who rang me to confirm i was happy with my warranty work as i have complained a few times, re: gear select and ecu etc. there is no need to take them off. I think if they take the CAI off they will be re installing it for free the minute their warranty service is over. no offence to any one intended. I hope toyota are smart about this work.