For my daily driver [270k] I have recently purchase and have or will install anew MAF,VMS Racing MAF ports,lower ram air box,smooth intake bellows. I wondering if its time to change the throttle body even tho i am not experiencing any problems. if so any recommendations? i will be changing my leaky timing chain cover and can't decide to make any changes here,again not experiencing any problems here. also considering changing the air box lid but can't decide what to buy. any opinions on the jaam kit?